Colorado Parks & Wildlife - Species Data - Gunnison's Sage Grouse Severe Winter Range
Colorado Parks and Wildlife Biologists, District Wildlife Managers, and Researchers
GunnSageGrouseSevereWinterRange is an ESRI SDE Feature Class showing coverage for severe winter range for Sage Grouse (Centrocercus urophasianus) in Colorado. Severe Winter Range is defined as that part of the winter range where 90% of the individuals are located when annual snowpack is at its maximum and/or temperatures are at a minimum in the two worst winters out of ten. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35).These data were last updated in 2018.