“US Topo” is the next generation of topographic maps from the U.S. Geological Survey. Digital US Topo maps are designed to look, feel, and perform like the traditional paper topographic maps ...

Hunting for historical topo maps on the USGS site used to be confusing and annoying. It involved a lot of clicking on what you hoped was the right thing, squinting at the tiny preview maps ...

The first page is a zoomed-out overview showing the map of the area in relation to the surrounding territory. The next four pages break down the USGS Quadrangle (the official name for USGS topo maps) ...

Maps help us find, discover, and reach new places. Although the field of geography is focused on locations, it is also a ...

The USGS also uses “shake stations” — denoted by colored circles in the map above — to measure the magnitude of earthquakes across the country, and it process the data to make contour maps.

A few definitions may be useful for laypeople who want to try it out: A topographical map shows physical features and elevations, usually with contour lines. Topo mapping done by the USGS ...

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 ...

National Geographic's TOPO! includes authentic, full-color USGS topographic maps, scanned at high resolution and seamlessly tiled together. This unique process creates the highest detail and best ...

For 2005, DeLorme says Topo USA 5.0 has more than 74,500 miles of updated trails. When was the last time the USGS issued an updated topographic map? This handy feature has been enhanced with ...

if you want to include better topographical contour maps onto Google Earth, there’s a tool which will overlay USGS topographical maps automatically for your current view. You can read about it here.

Last week we had a look at drawing contour lines using the Google Maps Elevation API ... Mapzen and they assure us that they use open data from USGS and NOAA and we may do whatever we like ...