The Circum-Pacific Map Project is a cooperative international effort to compile and publish new geological, geophysical, and resources maps of the Pacific Basin and surrounding continental areas. The maps are designed to show the relationship of known energy and mineral resources to the geology, tectonics, and crustal dynamics of the Pacific region. The latest geologic, geophysical, mineral, and energy data are being compiled at a basic scale of 1:10,000,000 on equal-area map projections. Where feasible, available data are being complemented by new, project-developed data sets such as magnetic lineations, plate-motion vectors, seafloor mineral deposits, and seafloor sediment. Earth scientists from 42 Pacific-region countries are involved in this work.