This report discusses the need for Alaska's minerals, the need for surface transportation corridors, and their relationship to planned D.2 withdrawals. On May 4, 1973, 31 tracts within the planned D.2 withdrawals were jointly recommended by the Geological Survey and the Bureau of Mines for multiple use including mining. Twenty-one of these tracts of land are analyzed, and known mineral deposits and metallogenic provinces are shown. The potential economic value of each tract, its impact upon the state and nation, and the salient mineral and transportation data for it are summarized. In December 1971, the U.S. Congress passed the Alaska Native Claims Settlement Act. Section 17(d)(2) of that Act directs the Secretary of the Interior to withdraw up to 80 million acres of unreserved public lands which the Secretary deems suitable for inclusion in national parks, forests, wildlife refuges, and wild and scenic river systems. This report shows why the 31 tracts mentioned should be left open to mining.