Free GIS Books
Most of these free GIS books are available in downloadable PDF format and can be read from a computer or on an eBook reader. Â
USGS Releases Two Decades of Land Cover Change for the Contiguous United States
The USGS has updated land cover maps for the conterminous United States, which show how the country’s landscapes have changed over the last 18 years.
Find Your Way Downstream with Streamer
Water is essential for life on the planet, and tool from the U.S. Geological Survey (USGS) makes it easy and fun to trace water flow across … Read more
This Detailed Map Shows 119 Years of Earthquakes
The USGS has released a highly detailed and updated map of seismicity from 1900 to 2018.
New Report Values Economic Benefits of Landsat Archive at $3.45 billion
A newly released report from the USGS has estimated the 2017 domestic and international economic benefits of Landsat imagery  to be $3.45 billion. Â