basemap.gdb
subwatershed
boundaries in TRCA jurisdiction. These subwatersheds are a compilation of subwatershed boudaries delinated through the use of a DEM (2002) and ArcHydro. This was originally created to replace the older subwatershed boundaries that contained overlaps and gaps.
Because these subwaershed were derived from a different source and methodology that the TRCA_Jurisdiction boundary there will be differenced between the overall juridiction, and watershed boundaries.