David J. Szumigala

Dave is a mineral exploration geologist with a wide range of knowledge about the geology related to mineral deposits. He has over 30 years of experience in Alaska, in bedrock geologic mapping, mineral exploration, and ore deposit research. Dave's research has focused on igneous-related mineral deposits, particularly lead-zinc skarns, and Fort Knox and Donlin Creek types of plutonic-related gold deposits.

• Position:

  Geologist, Mineral Resources

• Address:

  3354 College Road Fairbanks, AK 99709-3707

• Phone:

  (907) 451-5010

• Fax:

  (907) 451-5050

• Email:

  david.szumigala@alaska.gov

• Current Employee

  : Yes

Selected Publications

• Moshrefzadeh, J.A., Buchanan, J.W., Naibert, T.J., Twelker, Evan, Newberry, R.J., Szumigala, D.J., Barrera, M.L., Norwood, L.P., Acosta, M.D., and Regan, S.P., 2025, Field station locations and magnetic susceptibility data collected in 2024 for the Chena and Steese projects, Yukon-Tanana Uplands, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2025-5, 5 p. https://doi.org/10.14509/31476
• Buchanan, J.W., Wypych, Alicja, Barrera, M.L., Biegel, J.M., Gavel, M.M., Harvey, D.A., Ketcham, R.A., Muller, I.P., Naibert, T.J., Newberry, R.J., Regan, S.P., Szumigala, D.J., Twelker, Evan, and Wildland, A.D., 2025, Geochemical data from samples collected in 2023 for the Chena and Mount Harper projects, Big Delta, Circle, Fairbanks, and Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2024-2, 5 p. https://doi.org/10.14509/31123
• Naibert, T.J., Wypych, Alicja, Newberry, R.J., Twelker, Evan, Gavel, M.M., Wildland, A.D., Barrera, M.L., Szumigala, D.J., Regan, S.P., Avirett, D.F., Bernard, C.M., Blackwell, N.J., Fessenden, S.N., Harvey, D.A., Hubbard, A.K., Masterman, S.S., Muller, I.P., Turner, M.M., and Wyatt, W.C., 2024, Geologic background and map unit descriptions to accompany bedrock geologic maps of the western Tanacross and Taylor Mountain areas, Tanacross and Eagle quadrangles, Alaska, in Naibert, T.J., ed., Geologic investigation of the Western Tanacross and Taylor Mountain areas, Tanacross and Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2024-6A, 39 p. https://doi.org/10.14509/31167
• Naibert, T.J., Wypych, Alicja, Newberry, R.J., Twelker, Evan, Gavel, M.M., Wildland, A.D., Barrera, M.L., Avirett, D.F., Muller, I.P., Blackwell, N.J., and Szumigala, D.J., 2024, Bedrock geologic map of the Taylor Mountain area, Eagle and Tanacross quadrangles, Alaska, in Naibert, T.J., ed., Geologic investigation of the Western Tanacross and Taylor Mountain areas, Tanacross and Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2024-6B, 1 sheet, scale 1:100,000. https://doi.org/10.14509/31168
• Werdon, M.B., Newberry, R.J., Athey, J.E., Szumigala, D.J., Freeman, L.K., Burns, L.E., and Hicks, S.A., 2024, Bedrock geologic map of the Big Hurrah-Council-Bluff area, southern Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2024-7, 20 p., 1 sheet, scale 1:50,000. https://doi.org/10.14509/31308
• Szumigala, D.J., 2024, Alaska's mineral industry 2021: Alaska Division of Geological & Geophysical Surveys Special Report 77, 97 p. https://doi.org/10.14509/31272
• Gavel, M.M., Twelker, Evan, Wypych, Alicja, Naibert, T.J., Newberry, R.J., Szumigala, D.J., Wildland, A.D., Barrera, M.L., Biegel, J.N., Harvey, D.A., Ketcham, R.A., Muller, I.P., and Regan, S.P., 2023, Field station locations and magnetic susceptibility data for the Chena-Pogo and Mount Harper projects, Big Delta and Circle quadrangles, Alaska, collected June-September 2023: Alaska Division of Geological & Geophysical Surveys Raw Data File 2023-27, 3 p. https://doi.org/10.14509/31096
• Wypych, Alicja, Twelker, Evan, Naibert, T.J., Gavel, M.M., Newberry, R.J., Szumigala, D.J., Wildland, A.D., Barrera, M.L., Harvey, D.A., Muller, I.P., Fessenden, S.N., and Blackwell, N.J., 2023, Geochemical data from samples collected in 2022 for the Mount Harper geologic mapping project, Big Delta, Mount Hayes, and Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2023-24, 3 p. https://doi.org/10.14509/31089
• Gavel, M.M., Twelker, Evan, Wypych, Alicja, Naibert, T.J., Newberry, R.J., Szumigala, D.J., Wildland, A.D., Barrera, M.L., Blackwell, N.J., Fessenden, S.N., Harvey, D.A., and Muller, I.P., 2023, Field station locations and magnetic susceptibility data collected in 2022 for the Mount Harper project, Eagle, Big Delta, and Mount Hayes quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2023-6, 3 p. https://doi.org/10.14509/30963
• Freeman, L.K., Newberry, R.J., Griesel, G.A., Elliott, B.A., Szumigala, D.J., Lough, T.A., and Twelker, Evan, 2022, Bedrock geologic map of the eastern Moran area, Tanana B-6 and C-6 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2022-11, 16 p. https://doi.org/10.14509/30884
• Werdon, M.B., Solie, D.N., Andrew, J.E., Freeman, L.K., Newberry, R.J., Szumigala, D.J., and Elliott, B.A., 2019, Bedrock-geologic map, Alaska Highway corridor, Dot Lake to Tetlin Junction, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2019-2, 14 p., 2 sheets, scale 1:63,360. https://doi.org/10.14509/30037
• Solie, D.N., Werdon, M.B., Freeman, L.K., Newberry, R.J., Szumigala, D.J., Speeter, G.G., and Elliott, B.A., 2019, Bedrock-geologic map, Alaska Highway corridor, Tetlin Junction, Alaska to Canada border: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2019-3, 16 p., 2 sheets, scale 1:63,360. https://doi.org/10.14509/30038
• Benowitz, J.A., Layer, P.W., Freeman, L.K., Griesel, G.A., Elliott, B.A., Szumigala, D.J., Wypych, Alicja, and Montayne, Simone, 2019, 40Ar/39Ar data from the eastern Moran area, Tanana B-6 and C-6 quadrangles, and the Ruby mining district, Ruby B-5 and B-6 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2018-5, 28 p. https://doi.org/10.14509/30117
• Twelker, Evan, Athey, J.E., Newberry, R.J., Griesel, G.A., Szumigala, D.J., Freeman, L.K., Elliott, B.A., Werdon, M.B., and Stevens, D.S.P., 2016, Geologic map of portions of the Livengood B-3, B-4, C-3, and C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2016-5, 39 p., 1 sheet, scale 1:50,000. https://doi.org/10.14509/29665
• Freeman, L.K., Newberry, R.J., Werdon, M.B., Szumigala, D.J., Andrew, J.E., and Athey, J.E., 2016, Preliminary bedrock geologic map data for the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2016-3, 6 p. https://doi.org/10.14509/29661
• Freeman, L.K., Newberry, R.J., Wypych, Alicja, Werdon, M.B., Szumigala, D.J., Andrew, J.E., and Athey, J.E., 2016, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in 2008 in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2016-6 v. 1.1, 2 p. https://doi.org/10.14509/29653
• Werdon, M.B., Freeman, L.K., Szumigala, D.J., Newberry, R.J., Andrew, J.E., Speeter, G.G., Solie, D.N., Hubbard, T.D., Griesel, G.A., and Elliott, B.A., 2014, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Alaska Highway corridor, Mount Hayes, Tanacross, and Nabesna quadrangles, Alaska, in 2006, 2008, 2009, and 2010: Alaska Division of Geological & Geophysical Surveys Raw Data File 2014-4, 3 p. https://doi.org/10.14509/27201
• Szumigala, D.J., 2012, Alaska's mineral industry 2011 - exploration activity: Alaska Division of Geological & Geophysical Surveys Special Report 67, 10 p. https://doi.org/10.14509/24584
• Freeman, L.K., Szumigala, D.J., Blessington, M.J., and Werdon, M.B., 2012, Geochemical trace-element and rare-earth element data from stream-sediment and pan-concentrate samples collected in 2011 in the Melozitna mining district, Tanana and Melozitna quadrangles, interior Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2012-3, 3 p. https://doi.org/10.14509/23863
• Lough, T.A., Freeman, L.K., Elliott, B.A., Griesel, G.A., Newberry, R.J., and Szumigala, D.J., 2012, Geochemical, major-oxide, minor-oxide, trace-element, and carbon data from rocks collected in 2011 in the Moran area, Tanana and Melozitna quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2011-4 v. 2, 176 p. https://doi.org/10.14509/23002
• Szumigala, D.J., and Weakland, J.R., 2012, Alaska's mineral resources 2012: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 142, 1 sheet, scale 1:4,000,000. https://doi.org/10.14509/23343
• Werdon, M.B., Burns, L.E., Freeman, L.K., Griesel, G.A., Athey, J.E., Elliott, B.A., and Szumigala, D.J., 2012, Mineral Resources FY12 project descriptions, in DGGS Staff, Alaska Division of Geological & Geophysical Surveys Annual Report 2011: Alaska Division of Geological & Geophysical Surveys Annual Report 2011-B, p. 37-48. https://doi.org/10.14509/23304
• Szumigala, D.J., Harbo, L.A., and Adleman, J.N., 2011, Alaska's mineral industry 2010: Alaska Division of Geological & Geophysical Surveys Special Report 65, 83 p. https://doi.org/10.14509/22822
• Szumigala, D.J., and Werdon, M.B., 2011, Rare-Earth Elements: A brief overview including uses, worldwide resources, and known occurrences in Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular 61, 12 p. https://doi.org/10.14509/22262
• Werdon, Melanie, Athey, J.E., Burns, L.E., Elliott, B.A., Freeman, L.K., Griesel, G.A., and Szumigala, D.J., 2011, Mineral Resources FY11 project descriptions, in DGGS Staff, Alaska Division of Geological & Geophysical Surveys Annual Report 2010: Alaska Division of Geological & Geophysical Surveys Annual Report 2010-B, p. 42-53. https://doi.org/10.14509/22182
• Szumigala, D.J., Harbo, L.A., and Hughes, R.A., 2010, Alaska's mineral industry 2009: Alaska Division of Geological & Geophysical Surveys Special Report 64, 81 p. https://doi.org/10.14509/21881
• Griesel, G.A., Szumigala, D.J., Freeman, L.K., Newberry, R.J., Elliott, B.A., and Werdon, M.B., 2010, Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in 2010 in the Tolovana mining district, Livengood B-3 and B-4 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2010-3, 31 p. https://doi.org/10.14509/21781
• Werdon, M.B., Szumigala, D.J., and Davidson, G., 2010, Generalized geologic map of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 138, 2 p. https://doi.org/10.14509/21161
• Hughes, R.A., Szumigala, D.J., and Harbo, L.A., 2010, Alaska's mineral industry 2009: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 60, 15 p. https://doi.org/10.14509/21061
• Athey, J.E., Freeman, L.K., Hults, C.P., Szumigala, D.J., Werdon, M.B., Denny, C.L., and International Tower Hill Mines Ltd., 2010, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Chistochina mining district, Mount Hayes Quadrangle, Alaska, in 2005-2009: Alaska Division of Geological & Geophysical Surveys Raw Data File 2010-2, 130 p. https://doi.org/10.14509/20661
• Szumigala, D.J., Hughes, R.A., and Harbo, L.A., 2009, Alaska's mineral industry 2008: Alaska Division of Geological & Geophysical Surveys Special Report 63, 89 p. https://doi.org/10.14509/20061
• Freeman, L.K., Werdon, M.B., Szumigala, D.J., Andrew, J.E., Newberry, R.J., and Athey, J.E., 2009, Geochemical, major-oxide, minor-oxide, trace-element and carbon data from rocks collected in 2008 in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2009-1 v. 1.2, 69 p. https://doi.org/10.14509/20041
• Szumigala, D.J., Hughes, R.A., and Harbo, L.A., 2009, Alaska's mineral industry 2008: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 58, 15 p. https://doi.org/10.14509/19601
• Szumigala, D.J., Hughes, R.A., and Harbo, L.A., 2008, Alaska's mineral industry 2007: Alaska Division of Geological & Geophysical Surveys Special Report 62, 89 p. https://doi.org/10.14509/17841
• Szumigala, D.J., and Hughes, R.A., 2008, Alaska's mineral industry 2007: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 57 v. 1.0.1, 15 p. https://doi.org/10.14509/16701
• Athey, J.E., Freeman, L.K., Werdon, M.B., Szumigala, D.J., Lessard, R.R., Newberry, R.J., Hansen, S.E., and Jing, Liping, 2008, Major-oxide, minor-oxide, and trace-element geochemical data from rocks and stream sediments collected in the northern Fairbanks mining district, Circle Quadrangle, Alaska in 2007: Alaska Division of Geological & Geophysical Surveys Raw Data File 2008-1 v. 1.0.1, 41 p. https://doi.org/10.14509/15901
• Szumigala, D.J., and Hughes, R.A., 2007, Alaska's mineral industry 2006: Alaska Division of Geological & Geophysical Surveys Special Report 61, 83 p. https://doi.org/10.14509/15860
• Werdon, M.B., Newberry, R.J., Szumigala, D.J., Freeman, L.K., and Athey, J.E., 2007, Major-oxide, minor-oxide, trace-element, geochemical, and non-carbonate carbon data from rocks collected in the Solomon and Nome quadrangles, Seward Peninsula, Alaska in 2006: Alaska Division of Geological & Geophysical Surveys Raw Data File 2007-4, 49 p. https://doi.org/10.14509/15840
• Szumigala, D.J., and Hughes, R.A., 2007, Alaska's mineral industry 2006: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 54, 20 p. https://doi.org/10.14509/15755
• Hughes, R.A., and Szumigala, D.J., 2006, Alaska's mineral industry 2005: Alaska Division of Geological & Geophysical Surveys Special Report 60, 81 p. https://doi.org/10.14509/15748
• Athey, J.E., Newberry, R.J., Werdon, M.B., Freeman, L.K., Smith, R.L., and Szumigala, D.J., 2006, Bedrock geologic map of the Liberty Bell area, Fairbanks A-4 Quadrangle, Bonnifield mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2006-2 v. 1.0.1, 98 p., 1 sheet, scale 1:50,000. https://doi.org/10.14509/15026
• Szumigala, D.J., and Hughes, R.A., 2006, Alaska's mineral industry 2005: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 52, 19 p. https://doi.org/10.14509/14909
• Werdon, M.B., Stevens, D.S.P., Newberry, R.J., Szumigala, D.J., Athey, J.E., and Hicks, S.A., 2005, Geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2005-1A, 1 sheet, scale 1:50,000. https://doi.org/10.14509/14447
• Newberry, R.J., Werdon, M.B., Stevens, D.S.P., Athey, J.E., and Szumigala, D.J., 2005, Geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2005-1D, 1 sheet, scale 1:50,000. https://doi.org/10.14509/14448
• Szumigala, D.J., and Hughes, R.A., 2005, Alaska's mineral industry, 2004: Alaska Division of Geological & Geophysical Surveys Special Report 59, 75 p. https://doi.org/10.14509/7195
• Werdon, M.B., Stevens, D.S.P., Newberry, R.J., Szumigala, D.J., Athey, J.E., and Hicks, S.A., 2005, Explanatory booklet to accompany geologic, bedrock, and surficial maps of the Big Hurrah and Council areas, Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2005-1, 24 p. https://doi.org/10.14509/7192
• Athey, J.E., Werdon, M.B., Newberry, R.J., Szumigala, D.J., Freeman, L.K., and Lessard, R.R., 2005, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Liberty Bell area, Fairbanks A-4 Quadrangle, Alaska in 2005: Alaska Division of Geological & Geophysical Surveys Raw Data File 2005-5, 29 p. https://doi.org/10.14509/14444
• Werdon, M.B., Newberry, R.J., Szumigala, D.J., Athey, J.E., and Hicks, S.A., 2005, Bedrock geologic map of the Big Hurrah area, northern half of the Solomon C-5 Quadrangle, Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2005-1B, 1 sheet, scale 1:50,000. https://doi.org/10.14509/7193
• Newberry, R.J., Werdon, M.B., Athey, J.E., and Szumigala, D.J., 2005, Bedrock geologic map of the Council area, Solomon D-4 and Bendeleben A-4 quadrangles, Seward Peninsula, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2005-1E, 1 sheet, scale 1:50,000. https://doi.org/10.14509/7194
• Werdon, M.B., Szumigala, D.J., Newberry, R.J., Athey, J.E., and Hicks, S.A., 2005, Major-oxide, minor-oxide, trace-element, geochemical, and non-carbonate carbon data from rocks collected in the Solomon, Bendeleben, and Nome quadrangles, Seward Peninsula, Alaska in 2003 and 2004: Alaska Division of Geological & Geophysical Surveys Raw Data File 2005-2, 46 p. https://doi.org/10.14509/7130
• Szumigala, D.J., Puchner, C.C., and Myers, R.E., 2005, Geochemical data from reanalysis of stream-sediment samples collected in 1982 from the Livengood area, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2005-4, 45 p. https://doi.org/10.14509/7063
• Szumigala, D.J., and Hughes, R.A., 2005, Alaska's mineral industry 2004: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 51, 18 p. https://doi.org/10.14509/7083
• Szumigala, D.J., and Graham, G.E., 2005, Alaska resource data file, Melozitna Quadrangle, Alaska: U.S. Geological Survey Open-File Report 2005-1257, 73 p. https://dggs.alaska.gov/pubs/id/23628
• Szumigala, D.J., Hughes, R.A., and Harris, R.H., 2004, Alaska's mineral industry 2003: Alaska Division of Geological & Geophysical Surveys Special Report 58, 69 p. https://doi.org/10.14509/6968
• Athey, J.E., Werdon, M.B., Newberry, R.J., Szumigala, D.J., Craw, P.A., and Hicks, S.A., 2004, Geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3A, 1 sheet, scale 1:50,000. https://doi.org/10.14509/3309
• Athey, J.E., Szumigala, D.J., Newberry, R.J., Werdon, M.B., and Hicks, S.A., 2004, Bedrock geologic map of the Livengood SW C-3 and SE C-4 quadrangles, Tolovana mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2004-3B, 1 sheet, scale 1:50,000. https://doi.org/10.14509/3310
• Szumigala, D.J., 2004, Alaska's mineral industry 2003: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 50, 12 p. https://doi.org/10.14509/3211
• Werdon, M.B., Flynn, R.L., and Szumigala, D.J., 2004, Alaska Resource Data File, Eagle Quadrangle, Alaska: U.S. Geological Survey Open-File Report 2004-1056, 418 p. https://dggs.alaska.gov/pubs/id/14818
• Szumigala, D.J., Graham, G.E., and Athey, J.E., 2004, Alaska resource data file, Tanana Quadrangle: U.S. Geological Survey Open-File Report 2004-1386, 309 p. https://dggs.alaska.gov/pubs/id/14859
• Werdon, M.B., Newberry, R.J., Athey, J.E., and Szumigala, D.J., 2004, Bedrock geologic map of the Salcha River-Pogo area, Big Delta Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2004-1B, 19 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/3209
• Athey, J.E., Werdon, M.B., Szumigala, D.J., Newberry, R.J., Hicks, S.A., and Erickson, H.A., 2004, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Livengood Quadrangle, Alaska in 2001 and 2003: Alaska Division of Geological & Geophysical Surveys Raw Data File 2004-2, 13 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/2971
• Werdon, M.B., Newberry, R.J., Athey, J.E., Szumigala, D.J., Freeman, L.K., Lessard, R.R., Hendry, K.R., and Wiltse, M.A., 2003, Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in the Big Delta Quadrangle, Alaska in 2002: Alaska Division of Geological & Geophysical Surveys Raw Data File 2003-2, 45 p. https://doi.org/10.14509/2997
• Szumigala, D.J., Swainbank, R.C., Henning, M.W., and Pillifant, F.M., 2003, Alaska's mineral industry 2002: Alaska Division of Geological & Geophysical Surveys Special Report 57, 63 p. https://doi.org/10.14509/2919
• Szumigala, D.J., and Swainbank, R.C., 2003, Alaska's mineral industry 2002: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 49, 15 p. https://doi.org/10.14509/2876
• Swainbank, R.C., Szumigala, D.J., Henning, M.W., and Pillifant, F.M., 2002, Alaska's mineral industry 2001: Alaska Division of Geological & Geophysical Surveys Special Report 56, 65 p. https://doi.org/10.14509/2871
• Szumigala, D.J., Werdon, M.B., Newberry, R.J., Athey, J.E., Clautice, K.H., Flynn, R.L., Grady, J.C., Munly, W.C., and Johnson, M.R., 2002, Major-oxide, minor-oxide, trace-element, rare-earth element, trace geochemical, and coal quality data from rocks collected in the Eagle and Tanacross quadrangles, Alaska in 1999, 2000, 2001: Alaska Division of Geological & Geophysical Surveys Raw Data File 2002-1, 35 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/2866
• Szumigala, D.J., Newberry, R.J., Werdon, M.B., Athey, J.E., Stevens, D.S.P., Flynn, R.L., Clautice, K.H., and Craw, P.A., 2002, Geologic map of the Eagle A-1 Quadrangle, Fortymile mining district: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2002-1A, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2863
• Szumigala, D.J., Newberry, R.J., Werdon, M.B., Athey, J.E., Flynn, R.L., and Clautice, K.H., 2002, Bedrock geologic map of the Eagle A-1 Quadrangle, Fortymile mining district: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2002-1B, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2864
• Athey, J.E., Werdon, M.B., Szumigala, D.J., Newberry, R.J., and Johnson, M.R., 2002, Major-oxide, minor-oxide, trace-element, and geochemical data from the rocks collected in the Big Delta Quadrangle, Alaska in 2001: Alaska Division of Geological & Geophysical Surveys Raw Data File 2002-3, 18 p., 2 sheets, scale 1:150,000. https://doi.org/10.14509/2857
• Swainbank, R.C., and Szumigala, D.J., 2002, Alaska's mineral industry 2001: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 48, 15 p. https://doi.org/10.14509/2774
• Szumigala, D.J., Swainbank, R.C., Henning, M.W., and Pillifant, F.M., 2001, Alaska's mineral industry 2000: Alaska Division of Geological & Geophysical Surveys Special Report 55, 66 p. https://doi.org/10.14509/2769
• Werdon, M.B., Newberry, R.J., Szumigala, D.J., and Pinney, D.S., 2001, Geologic map of the Eagle A-2 Quadrangle, Fortymile mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2001-3A, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2669
• Werdon, M.B., Newberry, R.J., Szumigala, D.J., and Burns, L.E., 2001, Reconnaissance bedrock geology of the Pogo area, Big Delta B-2 and B-3 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2001-5, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2673
• Werdon, M.B., Athey, J.E., Szumigala, D.J., Newberry, R.J., Grady, J.C., and Munly, W.C., 2001, Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in the Salcha River-Pogo area in 2000, Big Delta and northwestern Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2001-1, 19 p., 1 sheet, scale 1:250,000. https://doi.org/10.14509/2661
• Szumigala, D.J., and Swainbank, R.C., 2001, Alaska's mineral industry 2000: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 47, 14 p. https://doi.org/10.14509/2662
• Werdon, M.B., Newberry, R.J., and Szumigala, D.J., 2001, Bedrock geologic map of the Eagle A-2 Quadrangle, Fortymile mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2001-3B, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2670
• DGGS Staff, and Szumigala, D.J., 2000, Alaska GeoSurvey News - Mineral-oriented geologic mapping of the Fortymile mining district: Alaska Division of Geological & Geophysical Surveys Newsletter 2000-3, 9 p. https://doi.org/10.14509/14585
• Szumigala, D.J., Newberry, R.J., Werdon, M.B., Finseth, B.A., and Pinney, D.S., 2000, Preliminary bedrock geologic map of a portion of the Fortymile mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2000-6, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2734
• Szumigala, D.J., Pinney, D.S., LePain, D.L., Liss, S.A., Burns, L.E., Clautice, K.H., Mayer, J.L., and McCarthy, A.M., 2000, Interpretive bedrock-geologic map of the Petersville (Yentna) mining district, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2000-3, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2882
• Szumigala, D.J., Dodd, S.P., and Arribas, A., Jr., 2000, Geology and gold mineralization at the Donlin Creek prospects, southwestern Alaska, in Pinney, D.S., and Davis, P.K., eds., Short Notes on Alaska Geology 1999: Alaska Division of Geological & Geophysical Surveys Professional Report 119H, p. 91-115. https://doi.org/10.14509/2690
• Swainbank, R.C., Szumigala, D.J., Henning, M.W., and Pillifant, F.M., 2000, Alaska's mineral industry 1999: Alaska Division of Geological & Geophysical Surveys Special Report 54, 73 p. https://doi.org/10.14509/2681
• Szumigala, D.J., Newberry, R.J., Werdon, M.B., Finseth, B.A., Pinney, D.S., and Flynn, R.L., 2000, Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in a portion of the Fortymile mining district, Alaska, 1999: Alaska Division of Geological & Geophysical Surveys Raw Data File 2000-1 v. 1.0.1, 24 p., 2 sheets, scale 1:63,360. https://doi.org/10.14509/2727
• Swainbank, R.C., and Szumigala, D.J., 2000, Alaska's mineral industry 1999: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 46, 12 p. https://doi.org/10.14509/3236
• DGGS Staff, Pinney, D.S., Reger, R.D., and Szumigala, D.J., 2000, Alaska GeoSurvey News - Geologic mapping and placer potential of the Petersville (Yentna) mining district: Alaska Division of Geological & Geophysical Surveys Newsletter 2000-1, 7 p. https://doi.org/10.14509/14583
• Werdon, M.B., Szumigala, D.J., Newberry, R.J., Grady, J.C., and Munly, W.C., 2000, Major-oxide, minor-oxide, trace-element, rare-earth element, and geochemical data from rocks collected in Eagle and Tanacross quadrangles, Alaska in 2000: Alaska Division of Geological & Geophysical Surveys Raw Data File 2000-4, 29 p., 3 sheets, scale 1:63,360. https://doi.org/10.14509/2729
• Szumigala, D.J., and Swainbank, R.C., 1999, Alaska's mineral industry 1998: Alaska Division of Geological & Geophysical Surveys Special Report 53, 71 p. https://doi.org/10.14509/3340
• Szumigala, D.J., and Swainbank, R.C., 1999, Alaska's mineral industry 1998: A summary: Alaska Division of Geological & Geophysical Surveys Information Circular 45, 12 p. https://doi.org/10.14509/491
• Hansen, E.W., Mayer, J.L., Szumigala, D.J., and Pinney, D.S., 1999, Land status and mining claims of the Eagle A-2 Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Public Data File 99-23, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1906
• Szumigala, D.J., 1999, Map of prospective mineral areas and significant mineral resources of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 38, 1 sheet, scale 1:2,500,000. https://doi.org/10.14509/746
• Pinney, D.S., Szumigala, D.J., Mayer, J.L., Liss, S.A., Clautice, K.H., McCarthy, A.M., LePain, D.L., Combellick, R.A., and Strandberg, N.M., 1998, Geochemical trace-element data from rocks collected in the Petersville (Yentna) mining district, 1998: Alaska Division of Geological & Geophysical Surveys Public Data File 98-32A, 19 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/1857
• Pinney, D.S., Szumigala, D.J., Mayer, J.L., Liss, S.A., and Clautice, K.H., 1998, Geochemical major-oxide and trace-element data from rocks collected in the Petersville (Yentna) mining district, 1998: Alaska Division of Geological & Geophysical Surveys Public Data File 98-32B, 6 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/1858
• Szumigala, D.J., and Swainbank, R.C., 1998, Map of selected mines, coalfields, and significant mineral resources of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 33, 1 sheet, scale 1:2,500,000. https://doi.org/10.14509/742
• Szumigala, D.J., 1995, Mineralization and zoning of polymetallic veins in the Beaver Mountains volcano-plutonic complex, Iditarod Quadrangle, west-central Alaska, in Combellick, R.A., and Tannian, Fran, eds., Short notes on Alaska Geology 1995: Alaska Division of Geological & Geophysical Surveys Professional Report 117I, p. 79-95. https://doi.org/10.14509/2325
• Szumigala, D.J., 1993, Gold mineralization related to Cretaceous-Tertiary magmatism in the Kuskokwim Mountains of west-central and southwestern Alaska: Los Angeles, California, University of California, Los Angeles, Ph.D. dissertation, 310 p.
• Szumigala, D.J., 1987, Geology of zinc-lead skarn deposits in the Tin Creek area, McGrath B-2 Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 87-5, 21 p., 1 sheet, scale 1:5,000. https://doi.org/10.14509/2428
• Szumigala, D.J., 1986, Geology and geochemistry of the Tin Creek zinc-lead-silver skarn prospects, Farewell mineral belt, southern Alaska Range, Alaska: University of Alaska Fairbanks, M.S. thesis, 144 p., maps.
• Burns, L.E., Pessel, G.H., and Szumigala, D.J., 1985, Simple bouguer gravity map of part of the northwestern Chugach Mountains, Anchorage Quadrangle, southcentral Alaska: Alaska Division of Geological & Geophysical Surveys Public Data File 85-44, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1145
• Szumigala, D.J., 1985, Geology of the Tin Creek zinc-lead skarn deposits, McGrath B-2 Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Public Data File 85-50, 26 p., 1 sheet, scale 1:5,000. https://doi.org/10.14509/1151

Selected Presentations

• Szumigala, D.J., 2025, Alaska mining industry overview - Rocking the Arctic (presentation): Association for Mineral Exploration Roundup 2025, Vancouver, BC, Canada, January 20-23, 2025: Alaska Division of Geological & Geophysical Surveys, 38 p. https://doi.org/10.14509/31473
• Szumigala, D.J., and Twelker, Evan, 2024, Antimony in Alaska: Alaska Division of Geological & Geophysical Surveys, 2 p. https://doi.org/10.14509/31431
• Szumigala, D.J., 2024, 2024 Alaska mining industry update (presentation): Association for Mineral Exploration Roundup, Vancouver, BC, Canada, January 22-25, 2024: Alaska Division of Geological & Geophysical Surveys, 32 p. https://doi.org/10.14509/31151
• Freeman, L.K., Newberry, R.J., Andrew, J.E., Szumigala, D.J., Werdon, M.B., Athey, J.E., and Burns, L.E., 2013, Geologic setting of syngenetic and epigenetic deposits in the eastern Bonnifield mining district, Alaska (presentation): Alaska Miners Association, 22nd Annual Biennial Mining Conference, March 9-13, 2010: Alaska Division of Geological & Geophysical Surveys, 25 p. https://doi.org/10.14509/25279
• Athey, J.E., Freeman, L.K., Hults, C.P., Szumigala, D.J., Werdon, M.B., Koehler, R.D., and Burns, L.E., 2009, Update on geological and geophysical investigations in the Slate Creek mining area, Alaska (presentation): Alaska Division of Geological & Geophysical Surveys, 33 p. https://doi.org/10.14509/29491
• Athey, J.E., Newberry, R.J., Freeman, L.K., Werdon, M.B., Szumigala, D.J., and Lessard, R.R., 2007, Geologic mapping and mineral investigations in the northern Fairbanks mining district, Alaska (presentation): Alaska Miners Association 2007 Annual Convention, Anchorage, Alaska, November 5-11, 2007.
• Werdon, M.B., Newberry, R.J., Szumigala, D.J., Athey, J.E., Lessard, R.R., and Burns, L.E., 2002, Advances in geologic understanding of the central Big Delta Quadrangle, Alaska (presentation): Alaska Miners Association Annual Convention, November 4-9, 2002: Alaska Division of Geological & Geophysical Surveys, 28 p. https://doi.org/10.14509/30039