**ESRI Users Conference Poster – A PDF of our poster “Celebrate the National Park Service Centennial with 10 Fun Geology Facts” can be obtained at http://nrdata.nps.gov/geology/gri_data/gis/GRI_ESRI_Users-DMT_2016_poster.pdf
The Geologic Resources Inventory (GRI) is a cooperative program between the National Park Service (NPS) and Colorado State University (CSU). The program is administered by the NPS Geologic Resources Division with funding from the NPS Inventory and Monitoring (I&M) Division. The GRI is one of 12 fundamental natural resource inventories conducted by the National Park Service and its partners; other inventories include soil resources, base cartography, water body location and classification, air and water quality, vegetation, and species lists.
The GRI provides geologic map data and relevant geologic information to support resource management and science-based decision making in more than 270 parks throughout the National Park System. The GRI produces three products:
· A geologic scoping meeting and scoping summary
· Digital geologic map data
· A park-specific geologic resources inventory report