USGS
Crowdsourcing with the USGS
The U.S. Geological Survey is putting out a call for citizen scientists (that means you) to help them track and gather geographic information on what is happening all around the globe. Here are the some of the most well-known USGS crowdsourcing projects.
Timelapse Satellite Imagery – View Changes on Earth over Time
The series of Landsat satellites has been collecting global imagery continuously since 1972. A total of eight satellites and millions ...
SDTS – GIS Data Standard
SDTS stands for Spatial Data Transfer Standard. SDTS was a standard for transferring earth-referenced spatial data across disparate computer programs. The U.S. ...
Where to Look for Historical Maps
The use of extracting data from old paper maps is growing in popularity as a method to understanding historical geography. ...
National Forest Map and GIS Data
Josef Kellndorfer and Wayne Walker of the Woods Hole Research Center (WHRC) worked with the USGS and the US Forest Service over a six year period to create this forest map of the United States.