What is a Watershed?
A watershed is all the land which drains to a specific body of water such as a creek.
For the Wissahickon Creek, the watershed is 64 square miles which flow downhill to the
Wissahickon or one of its tributaries.
Because rain water runs downhill to the Wissahickon, whatever happens on the land will
affect the Creek. Thus protecting the Wissahickon means treating land in the watershed
sensitively.
(click on the map for a larger version in PDF format)
Part or all of the following communities lie within the watershed of the Wissahickon
Creek:
- Montgomery Township
- Lansdale Borough
- North Whales Borough
- Upper Gwynedd Township
- Lower Gwynedd Township
- Whitpain Township
- Ambler Borough
- Upper Dublin Township
- Whitemarsh Township
- Abington Township
- Springfield Township
- Philadelphia
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