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State of Alaska Alaska / Natural Resources DNR / Geological & Geophysical Surveys DGGS / Geologic Materials CenterGMC

Geologic Materials Center

GMC inventory storage shelves

What We Do

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The Alaska Geologic Materials Center (GMC) connects the state's largest geologic collections to research, industry and education communities for the purposes of greater geologic understanding, increased awareness of economic opportunities, and to stimulate public interest and understanding in Alaska's geologic history.

Our Mission

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The mission of the Geologic Materials Center is to permanently archive, index, protect, and make available for public inspection, accessible geologic materials and related data to help advance exploration and knowledge of Alaska's natural resources.

GMC Overview

top view of GMC shelving racks

The GMC is Alaska's largest and most comprehensive archive of geologic samples from offshore and federal, state, and private lands. The Alaska GMC is dedicated to helping geoscientists and the public understand Alaska geology through the acquisition and preservation of physical and digital collections.

Why Have a Core Repository?

Cores and samples stored at the GMC hold extreme value, as the information they provide may help the discovery of additional oil & gas reserves, geothermal energy resources, or new mineral prospects. Despite constant evaluations of geologic materials, there is often need to revisit previous work as science progresses. The examination of rock samples and core stored here offers an opportunity to further understanding of Alaska geology and potentially critique old ideas.

GMC Statistics

Alaska GMC well locations
  • 3096 Alaska energy wells
  • 26,500,000 feet of energy strata drilled
  • 16,700,000 representative feet of energy core and cuttings
  • 76,000 linear feet of energy core
  • 22,000 Alaska minerals boreholes
  • 766,000 feet of mineral rock drilled
  • 617,000 representative feet of mineral core and cuttings
  • 354,000 linear feet of mineral core
  • 250,000 processed slides and thin sections
  • 507,000 surface samples


Kurt Johnson
GMC Curator
Phone: 907-754-3597
Email: kurt.johnson@alaska.gov

Hours & Location

Monday - Friday
8:30am - 4:30pm
Closed for State Holidays

3651 Penland Parkway
Suite 135
Anchorage, AK 99508
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