The USGS has the largest earth science library in the world, with collections in the areas of geology, hydrology, cartography, and biology, in four locations: Denver, Flagstaff, Menlo Park, CA, and Reston,VA.
The USGS has the largest earth science library in the world, with collections in the areas of geology, hydrology, cartography, and biology, in four locations: Denver, Flagstaff, Menlo Park, CA, and Reston,VA.