Because of its origin in natural resource surveys and the similarity of the USGS mission to Thomas Jefferson's charge to Meriwether Lewis, the USGS can be seen as the organizational successor to Lewis and Clark.
Description of the Antarctic Resources Center and links to its workshops and archives of Antarctic maps, charts, satellite images, and photographs produced by the member nations of the Scientific Committee on Antarctic Research (SCAR).
Using 172 Scenes from the Multi-Resolution Land Characteristics 2001 collection geometrically and radiometrically aligned, we produced seamless, relatively cloud-free image of the entire state.