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 ...

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 ...

This month the U.S. Geological Survey (USGS) rolled out topoView 2.1, a modern web application built on an open source mapping platform that lets users discover, interact, and download historical USGS ...

The U.S. Geological Survey is scanning 250,000 of its historic maps to put online. The U.S. Geological Survey (USGS) is nearly halfway through its release of more than 250,000 historical topographic ...

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, ...

No audio available for this content. This graphic represents the planned US Topo map production schedule for the next three- year revision cycle. The US Topo project repackages data from national GIS ...

CC0 Usage Conditions ApplyClick for more information. The Historic Maps of Africa collection includes 78 maps and dates from circa 1631 to 1973. Geographic content of individual maps varies from ...

Historic maps are a wonderful way of discovering the unique heritage of the Seattle area, including its environmental history. Some of the following cartographic resources are commonly used by ...