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To show the County's delineated 12 digit watersheds (recognized by the State of MD) and subwatersheds for which stream conditions can be calculated. Shapefile is a union between the 12 digit watershed shapefile and the subwatershed shapefile.
The shaded polygons in the map above represent Maryland’s 12-digit scale watersheds. The delineation breaks the state up into 1,100+ watersheds. Thus, these watersheds are smaller in size than the 8-digit scale watersheds and generally represent drainage divides between 2nd order rivers/streams. These watersheds are identified via a 12-digit numeric code. Watersheds in this polygon file relate to TMDLs and WLAs in the applicable queries via a 12-digit watershed name identified in the location description, if applicable (i.e., if the TMDL/WLA is developed at a 12-digit watershed scale).
Montgomery County Department of Environmental Protection delineated 12 digit watersheds (recognized by State of MD) and tributaries.
Please direct any questions or comments concerning this map to Jeff White at jeff.white@maryland.gov or 410-537-3884. |