Chena - Pogo Mine

Project Details

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• Project ID:

  1682

• Nickname/Abbreviation:

  UCPM

• Parent Project:

  Earth Mapping Resources Initiative (Earth MRI)

• Status:

  Active

• Description:

  The Chena-Pogo Mine field-geologic mapping project is part of the ongoing USGS and DGGS collaborative efforts to upgrade geologic data in the Yukon-Tanana Upland as part of the larger Earth MRI project for FY2023. The project proposes to map a ~14,400 km2 (~5,560 mi2) area of the YTU at 1:100,000 scale. The proposed area adjoins the FFY2022 Earth MRI Mount Harper map and includes parts of the Big Delta, Circle, Fairbanks, and Charley River quadrangles. It includes the Pogo mine and surrounding prospects (Au, with potential to produce Bi and Te), and the Furs W-skarn prospect, among others. The project will include about ten weeks of helicopter-supported fieldwork plus compilation and infill mapping of DGGS (Salcha River-Pogo, Upper Chena River) and USGS (Big Delta B-1 and B-2) geologic maps and industry data available within the map area. USGS EarthMRI award #G23AC00372

• Project Date(s):

  2023 - present

• Primary Contact:

  Twelker, Evan

• DGGS section:

  Mineral Resources

• Project Participants:

  Rainer J. Newberry, David J. Szumigala, Evan Twelker, Alicja Wypych, Travis J. Naibert, W. Chris Wyatt, Michelle M. Gavel, Alec D. Wildland, Michael L. Barrera, David A. Harvey, Izzy P. Muller, Serena N. Fessenden, J. Wesley Buchanan, Jenna N. Biegel, Jamshid A. Moshrefzadeh

• Stations/Samples:

  View list

Publications

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PIR 2026-3

Twelker, Evan, ed., 2026, Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3, 1 p. https://doi.org/10.14509/32111

PIR 2026-3A

Newberry, R.J., Twelker, Evan, Naibert, T.J., Barrera, M.L., Szumigala, D.J., Buchanan, J.W., Truskowski, C.M., and Wilson, K.R., 2026, Unit descriptions for bedrock geologic maps of the Chena-Pogo map area, Alaska, in Twelker, Evan, ed., Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3A, 63 p. https://doi.org/10.14509/32112

PIR 2026-3B

Newberry, R.J., Naibert, T.J., and Barrera, M.L., 2026, Bedrock geologic map of the Granite Tors and Chena Hot Springs areas, Circle and Big Delta quadrangles, Alaska, in Twelker, Evan, ed., Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3B, 1 sheet, scale 1:100,000. https://doi.org/10.14509/32113

PIR 2026-3C

Naibert, T.J., Buchanan, J.W., Wilson, K.R., Regan, Sean, Truskowski, C.M., Szumigala, D.J., and Norwood, L.P., 2026, Bedrock geologic map of the upper Salcha River, East Fork Chena, and Big Windy Creek areas, Big Delta and Circle quadrangles, Alaska, in Twelker, Evan, ed., Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3C, 1 sheet, scale 1:100,000. https://doi.org/10.14509/32114

PIR 2026-3D

Barrera, M.L., Newberry, R.J., Twelker, Evan, Buchanan, J.W., and Naibert, T.J., 2026, Bedrock geologic map of the Yukon Training Area and lower Salcha River, Big Delta and Fairbanks quadrangles, Alaska, in Twelker, Evan, ed., Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3D, 1 sheet, scale 1:100,000. https://doi.org/10.14509/32115

PIR 2026-3E

Twelker, Evan, Newberry, R.J., Wilson, K.R., Szumigala, D.J., Muller, I.P., and Truskowski, C.M., 2026, Bedrock geologic map of the upper Goodpaster River area, Big Delta quadrangle, Alaska, in Twelker, Evan, ed., Geologic investigation of the Chena-Pogo area, interior Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-3E, 1 sheet, scale 1:100,000. https://doi.org/10.14509/32116

PIR 2026-2

Newberry, R.J., and Moshrefzadeh, J.A., 2026, Interior Alaska amphibolite mineral compositions: A key to distinguishing metamorphic assemblage: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2026-2, 33 p. https://doi.org/10.14509/32081

RDF 2025-25

Buchanan, J.W., Barrera, M.L., Moshrefzadeh, J.A., Truskowski, C.M., and Newberry, R.J., 2025, LA-ICP-MS uranium-lead zircon data from samples in the Chena and Steese project areas: Alaska Division of Geological & Geophysical Surveys Raw Data File 2025-25, 4 p. https://doi.org/10.14509/31731

RDF 2025-17

Moshrefzadeh, Jamshid, Acosta, M.D., Barrera, M.L., Buchanan, J.W., Naibert, T.J., Newberry, R.J., Norwood, L.P., Regan, S.P., Szumigala, D.J., and Twelker, Evan, 2025, Geochemical data from samples collected in 2024 for the Chena and Steese projects, Big Delta, Circle, Fairbanks, and Livengood quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2025-17, 3 p. https://doi.org/10.14509/31692

RDF 2025-13

Moshrefzadeh, J.A., and Newberry, R.J., 2025, Electron probe microanalyzer data collected on samples from the Chena and Steese projects, Yukon-Tanana Uplands, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2025-13, 6 p. https://doi.org/10.14509/31537

RDF 2025-14

Buchanan, J.W., Gavel, M.M., Barrera, M.L., Regan, S.P., and Newberry, R.J., 2025, LA-ICP-MS uranium lead geochronologic data of zircon from igneous and meta-igneous rocks in the Chena project area, Circle, Big Delta, and Eagle quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2025-14, 4 p. https://doi.org/10.14509/31553

RDF 2025-5

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

RDF 2024-2

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

RDF 2023-27

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