Despite its name, it is not for actually viewing maps but rather, it helps you find and download them. The maps in question are historical topographic maps of the US from the USGS’s vast collection.

Providing science for a changing world, the United States Geological Survey continues to support the delivery of its digital maps through Avenza Systems Inc.'s popular, award-winning PDF Maps app.

Using scanned maps and data from the United States Geological Survey (USGS), Esri developed an interactive tool to explore topographic maps of the US.

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 ...

Yes, you could get USGS topographic maps before, ... Quads, or quadrangles, generally refer to USGS maps that cover 7.5 arc minutes (one minute of arc is equal to one-sixtieth of a degree).

“So I am very pleased,” continued Secretary Salazar, “that this new type of USGS topographic map not only preserves the best qualities of older topographic maps but now, in a popular digital ...

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 ...

The U.S. Geological Survey (USGS) announced that more than 400 new topographic maps are now available for the state of Alaska. The new maps are part of the U.S. Geological Survey Alaska Mapping ...

The first batch of new, more accurate Alaska maps that will eventually cover the whole state is out and free to the public as part of a state and federal project to replace old topographic maps ...

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 ...