Description Usage Format Source
Hydrologic zone boundaries were digitized from 1:600,000 hardcopy maps. Coastline & islands were copied from 1:50K BC WSA. Linework updated January 2003. Polygons & Regions built September 20, 2004. Boundaries accuracy is +/- 1 kilometre based on hydrologic maps, graphical plots, & previous definitions.
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Zones that represent areas of homogeneous hydrologic and geomorphological characteristics
Original data from DataBC, under the Open Government License - British Columbia.
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