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 ...

The United States Geological Survey (USGS) continues to support the delivery of its digital maps through Avenza Systems Inc.‘s PDF Maps app. It has widened the selection to more than 120,000 US Topo ...

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 ...

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating electronic US Topo quadrangles. Since the project’s ...

It just got way, way easier to search and browse the US Geological Survey’s collection of historical topographic maps, thanks to a new online map viewer. These maps—more than 178,000 of them—date back ...

The US Geological Survey (USGS) has added more earthquake related visualizations for Google Earth. A couple of weeks ago they released a large collection of visualizations for GE as part of the 100th ...

Damaging earthquakes could strike nearly 75 percent of the U.S, new research from the U.S. Geological Survey (USGS) found. Scientists using the USGS National Seismic Hazard Model,created a color-coded ...

A few months ago we showed you Matt Fox’s excellent topographic maps of New Zealand, which were quite impressive. Over the years he’s had many requests to create similar maps with seamless USGS ...