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Protecting and enhancing open space
Promoting awareness and appreciation of environmental issues
Promoting wise land use and management of natural resources
Preserving historic and cultural sites

Thompson Dam Meeting
Updated 10/24/18
The Wissahickon Valley Watershed Association (WVWA) is developing a plan on how to efficiently manage the Thompson Dam that sits on the Wissahickon on a 7.6-acre parcel in Whitpain Township (north of Mt. Pleasant Avenue). Stakeholders were invited (as well as the general public) to the meeting to discuss the opportunities and challenges associated with this structure. This session included an open forum that allowed attendees to provide input on the dam and WVWA’s options. Click here for up-to-date information and resources.

Upcoming Events

  • Collected Stories at Act II Playhouse

    8:00 p.m.
    Collected Stories by Donald Margulies is a play about a successful short story writer who tries to mentor her student, but ends up creating a rival in this engaging drama with witty, acerbic dialogue. A finalist for the Pulitzer Prize. $2 from every ticket sold to the Nov. 15 show will be donated to WVWA! Buy your ticket today.  

  • All About Owls

    7:00 p.m. - 9:00 p.m.
    Program FULL - call 215-646-8866 or email kristy@wvwa.org to be added to waitlist

    Fall is one of the best times of the year to see and hear owls - and what could be a better way to take advantage of autumn's beautiful, quiet nights than to go in search of those nocturnal wonders at the suburban home of the Temple Owls! Join WVWA Naturalist Kristy Morley for an evening learning all about the habits and adaptations of our nocturnal neighbors, followed by an owl-prowl through the twilight woods!

  • Nature Journal Club

    1:00 - 3:00 p.m.
    Want to deepen your love of the natural world, notice nature’s tiniest details and spend time surrounded by the beauty of the outdoors? Then start keeping a nature journal! Join us for a monthly journal club and make this activity a habit. 

  • Evans-Mumbower Mill Open House

    1:00 p.m. - 4:00 p.m.
    Open House & Trail Walk
    After touring the Mill, take a walk along the former millrace that fed the mill, to locate the remnants of the dam in the Upper Wissahickon. The walk will begin at 2:00 pm and last approximately an hour. Please wear sturdy shoes or boots!

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Current News

Read All News »

  • WVWA Welcomes Two New Board Members

  • Public Meeting on the Thompson Dam Project

  • Spotted Lanternfly Resources

A Healthy Wissahickon: We All Have a Part to Play from GreenTreks Network on Vimeo.

If you have a group who would like to view the movie, contact Gina Craigo at gina@wvwa.org.