Greater Sage-grouse Range - NE CA - 2005 [ds96]

Records in this dataset represent current and historic range. Current and historic range were mapped and reported on by Frank Hall in Determining Changes in Abundance of Sage-Grouse (Centrocercus urophasianus) in California, August 1995.

The ranges were hand drawn on 1:250,000 scale USGS maps and then digitized in ArcInfo. For a larger range mapping project and range continuity, input from DFG and BLM wildlife biologists in northern California, southern Oregon, and western Nevada was collected using the same methods; hand drawn ranges on 1:250,000 scale USGS maps and then digitized in ArcInfo. In 2005, Hall modified the current range that is represented in this dataset.