GIS Resources

View national GIS data sets on an NPS Data and Information online clearinghouse. And, view Yosemite's GIS data sets, covering topics from geology to fire to soils.


Applications of GIS Technology

An NPS' "Geography and Mapping Technologies" website includes GIS data downloads and general information about how the NPS applies GIS technology.

View USGS digital US Topo maps free in a GeoPDF format with tools to determine coordinates, turn layers on and off, zoom in and out, and print.

A U.S. Library of Congress website provides information about geography and access to maps, including terrain models, atlases, aerial photographs and historic maps.

Access the National Fire Situation Awareness website: an internet-based mapping application designed to provide information about and support for the management of wildland fires.

See how sequences of satellite images over time can tell a story of ecological dynamics: Observe Yosemite fires and forest re-growth through Landsat imagery by Oregon State University scientists.

Last updated: May 6, 2021

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