IGIS Tech Notes describe workflows and techniques for using geospatial science and technologies in research and extension. They are works in progress, and we welcome feedback and comments below.

Ever wonder what your street looked like in the 1980s or even the 30s? With Google Earth's historical imagery feature, you can view almost any location as it would've appeared throughout time.

Black Earth Rising' illuminates links between the climate crisis, land, colonization, diasporas, and social and environmental ...

The mourning of Sebastião Salgado's passing in Brazil and around the world is a testament to the power and necessity of his ...

Maps must be more than static reference tools; they must be dynamic platforms that reflect the world as it changes.

In one lawsuit, the North Carolina NAACP, Common Cause and several Black residents originally sued over redrawn state House and Senate maps and U.S. House districts.

Metro Atlanta had the nation's second highest number of Census tracts flip from majority Black to majority white between 1980 and 2020, a new report says.

Vermont is beautiful in all four seasons, and exploring the mountains and valleys on foot is one of the most enchanting ...

The Supreme Court seemed closely divided Monday over a challenge to Louisiana’s congressional map, which added a second Black majority district.

A majority of the court appeared skeptical of a challenge to Louisiana’s voting map. The challengers had argued the state impermissibly relied on race to draw its map.

Google Maps also offers elevation information based on topographical maps. The United States Geologic Survey (USGS) offers a free topoBuilder tool that displays extensive information on detailed maps.