This collection includes diamond drill core from hardrock/lode mineral prospects that have been donated to the Alaska Geologic Materials Center (GMC) by private entities or that have been recovered from properties during reclamation of historic mine and exploration sites by the U.S. Bureau of Land Management. The core is stored in waxed cardboard or plastic boxes. Mineralized portions, and in some cases the entire the core, has been split and sampled. Some core may have been quartered and sampled, or entirely consumed. The condition and completeness of the core varies widely. The core is housed on metal shelving in steel shipping containers. The containers are locked and secure, free of vermin, and protected from rain and snow. However, the core is subject to the extremes of temperature and humidity common in this part of Alaska.
This collection is comprised of diamond drill core from identified mineral prospects; it may include some coal prospects, and may include some percussion drill/rotary cuttings and surface samples. Core has been donated by mining and exploration companies as well as Alaska Native Corporations. Some core was recovered from abandoned exploration sites by the Bureau of Land Management. At present there is no statutory requirement by the Federal Government or the Alaska State Government to provide any materials from drilling or other exploration work on mining claims or leases.