BighornWinterRange is an ESRI SDE Feature Class showing that part of the
overall range where 90% of the individuals are located during the
average five winters out of ten, from the first heavy snowfall to spring
green-up, or as a specific period which may defined for each unit.
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).
Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available on ArcGIS.com (http://www.arcgis.com/home/item.html?id=d1359dc6cf6e44979cacbfdbc34691e4) and will be updated from that location.