Permits to explore for and (or) develop mineral resources on forest land can be used to indicate locations and types of mineral-related activities on national forests. Permits for these activities require filing at the Forest Service a Notice of Intention (Notice) to conduct mineral exploration activities and (or) a Plan of Operation (Plan). A Plan of Operation is required is significant activities are anticipated. This compilation of Notices and Plans for the Colville, Kaniksu, Okanogan, and Wenatchee National Forests between 1967 and 1998 is intended for use in combination with geologic and economic information to predict future mineral-related activities in the region.