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

This article was originally published with the title “The Topographic Maps Prepared by the United States Geological Survey” in SA Supplements Vol. 65 No. 1691supp (May 1908), p. 347 doi:10. ...

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.

The United States Geological Survey (USGS) recently posted online two moon maps — a photo mosaic and a topographic map — that were constructed using images and data captured by NASA's long ...

Those giant maps gathering dust in the corner of your favorite outdoor store have finally been brought into the 21st century. National Geographic‘s new service, launched last week on their Maps site, ...

DGS recently released new elevation contour data for the entire state, improving the detail of the information from two-foot contours to one-foot contours, which are lines of equal elevation that ...