- Data source
- US watershed boundaries from USGS - http://water.usgs.gov/GIS/huc.html<br />
Canada watershed boundaries from Ministry on Sustainable Resource
Management’s Fisheries Inventory Watershed Atlas -
http://srmwww.gov.bc.ca/gis/GISdata.html<br />
Mexico fish distributions from Freshwater Fishes of Mexico (Miller and Minckley 2006)<br />
US fish distributions from each state's respective fish agency<br />
Additional information may come from peer-reviewed literature, grey
literature and agency reports, and scientific collection permit catch
records<br />
Harvested on Fri May 23 09:38:48 MDT 2014 from Data Basin Service
