The USGS publishes free topographic maps that show trails, rivers, and campsites in great detail for hikers, cyclists, and ...
Mapping out geology across the U.S. is surprisingly difficult, but the USGS has managed just that, and its map is more ...
Now you've got one less excuse not to venture into the wilderness. National Geographic just launched a website that lets you find and print a PDF of any U.S. Geological Survey (USGS) quad map across ...
Beginning in the 1940s, the U.S. Geological Survey’s National Mapping Program was tasked with the immense cartographical feat of surveying the entire country to create a series of more than 50,000 ...
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A New USGS Map Lets You See the Layers of Rock and Sediment Hidden Directly Beneath Your Feet
In late August, the U.S. Geological Survey quietly released a new tool that could reshape how Americans understand the ground ...
A map of Chicago, Illinois, imprinted in 1913 from the United States Geographical Survey’s historical topographic map collection. Image courtesy of the USGS Map lovers, rejoice! The United States ...
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