We have in the past looked at a lot of content provided by the USGS. The USGS is the provider of the data for the ‘earthquakes layer’ in Google Earth. We also looked at some of their future plans, ...
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 ...
During the latter half of the twentieth century, the backbone of the U.S. Geological Survey’s national mapping effort was the 7.5-minute topographic quadrangle. These detailed printed maps defined ...