The Bureau of Mines compiled available data on mineralization in the proposed gates of the Arctic Wilderness National Park, Alaska. At least six eastward trending rock type areas with associated mineralization were identified, but all remain essentially unexplored. The study region included the proposed park and adjacent areas. A three-phase program was undertaken to (1) compile a list of known mineral occurrences and prospects, (2) to sample, map, and evaluate prospects as time and funding permitted, and (3) to summarize the results and identity deposits and occurrences that warrant additional investigation. The area studied was limited to lands withdrawn from mineral entry and not included in overlapping or dual withdrawals.