In the second half of the 20th century, the foundation of the U.S. Geological Survey’s national map series was the handcrafted 7.5-minute topographic map. Times change, budgets get squeezed and ...

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 ...

Maps are an important tool for learning about the world around you. Some maps are designed to show what roads will take you where, and others are designed to tell you about the actual land in a given ...

The 5.8-magnitude earthquake that hit Lincoln, Montana on Thursday was the area’s strongest in 60 years. The tremors from this quake stretched for hundreds of miles across the state, and residents as ...

DR. ELLES has lectured for several years past on this subject to women students at the University of Cambridge, and the well-printed and fully illustrated book under notice is based upon the course of ...

Frederic Wilson receives funding from the U.S. Geological Survey and the National Park Service. He is a Fellow of the Geological Society of America and a member of the Alaska Geological Society Since ...