- Data source
- US watershed boundaries from USGS - http://water.usgs.gov/GIS/huc.html, Canada watershed boundaries from Ministry on Sustainable Resource Management’s Fisheries Inventory Watershed Atlas - http://srmwww.gov.bc.ca/gis/GISdata.html, Mexico fish distributions from Freshwater Fishes of Mexico (Miller and Minckley 2006), US fish distributions from each state's respective fish agency, Additional information may come from peer-reviewed literature, grey literature and agency reports, and scientific collection permit catch records
Harvested on Fri May 23 09:37:10 MDT 2014 from Data Basin Service
