U.S. Geological Survey Publications WarehouseSearch for all types of maps, images, and publications in the United States Geological Survey (USGS) Publications Warehouse. The USGS is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology.