Our Mission

We inspire and engage diverse communities of people to protect, steward and enjoy the land and waterways of the Wissahickon Valley.

About Us

The Wissahickon Valley Watershed Association is a 501c3 nonprofit organization working since 1957 to keep the Wissahickon Valley a place where people and nature can thrive.

For WVWA Staff and Board directory, click here.


Note: This is a temporary website, stay tuned for a new website in 2020.

Support the Wissahickon

Become a Member or Donate

Annual Fund

People need nature and nature needs people - people like you. Make a special, one-time gift.


Select monthly giving or a yearly membership to provide ongoing support of our mission.

Green Ribbon Gala

Enjoy cocktails, hors d’oeuvres and live music as we celebrate our 62 year legacy of conservation.

Adopt-A-Monarch: all proceeds will support our monarch monitoring and butterfly conservation program, click here

For information about corporate sponsorship, EITC program, planned giving, matching gifts, click here.


Fall and Winter in the Wissahickon

Monarch Tagging Pop-up

Tuesday, October 15 | 9:00 to 10:30 a.m.

Help WVWA learn more about monarch butterfly migration and contribute to several national citizen science projects that monitor monarch population status. Join us to help net and tag migrating monarchs. This is event is great for people of all ages. Locations vary based on butterflies, location confirmation will be sent to registrants in advance of the event. Each session is limited to 10 registrants.

Green Ribbon Gala

Sunday, October 20 | 5:00 to 7:00 p.m.

We invite you to join us at historic Cedarbrook Country Club for this year’s Green Ribbon Gala. Enjoy cocktails, hors d’oeuvres and live music as we celebrate our 62 year legacy of conservation. The Wissahickon Creek meanders throughout this verdant 225-acre property, sustaining lakes, ponds and abundant wildlife. The Green Ribbon Gala is a time to celebrate the Wissahickon Valley Watershed Association's work and gather with friends, new and old.

Craft Beer by the Creek

Saturday, October 26 | 1:00 to 4:00 p.m.

For this event we'll have a food truck, local craft beer, hard cider, and live music at Four Mills Barn. This is a family friendly event and leashed dogs are invited to join the fun. Due to limited parking, attendees park in Ambler and take a short (and beautiful!) hike on the Green Ribbon Trail to the historic Four Mills Barn along the Wissahickon Creek. The event is free for WVWA members and $10 for non-members. Food and drinks are pay as you go.

Family Friendly Ghost Tour & Pumpkin Painting

Saturday, October 26 | 5:00 to 8:00 p.m.

Don’t miss this slightly spooky but fun evening when old Henry Mumbower and his family revisit his Mill to see how it is operating today. Relax and roast marshmallows and enjoy some seasonal cider. Come early to paint your own pumpkin from 5:00 to 6:00 p.m. Event is free. The Evans-Mumbower Mill is located on the Wissahickon Creek at Swedesford & Township Line Roads in North Wales, PA.

5-Mile Green Ribbon Trail Race

Saturday, November 2 | 9:00 to 11:00 a.m.

Challenge yourself on the beautiful Green Ribbon Trail. This 5-mile race is ideal for both experienced and new trail runners. Runners will start at Parkside Place Park and follow the Green Ribbon Trail downstream, circle through the Natural Lands' Gwynedd Preserve and finish back at the Park’s pavilion for the award ceremony and brunch.

Thank you to our generous sponsors >>

Your Home is Their Home

Thursday, November 7 | 7:00 to 8:30 p.m.

Learn how to create a safe haven for birds in your yard. We will discuss and demonstrate how to prevent window collisions, setting up a bird feeding station, and the top 10 plants that you can plant for birds. Program will be held at Four Mills Barn in Ambler, PA. Free for WVWA members and children under 12, $10 for non-members. 

All About Owls

Friday, November 8 | 7:00 to 9:00 p.m.

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. 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. Program will take place at Temple Arboretum, 580 Meetinghouse Road, Ambler, PA. Free for members and children under 12, $10 for non-members. 

6 Mile, 6 Preserve Hike

Sunday, November 10 | 3:00 to 6:00 p.m.

This 6 mile loop-hike will connect Camp Woods, Armentrout Preserve, Briar Hill Preserve, Prophecy Creek Park, Willow Lake Farm, and the Green Ribbon Trail. Led by Harm Scherpbier, this hike is for participants who can walk a ~25 minute mile. The hike will start at Four Mills Barn, 12 Morris Rd, Ambler, PA 19002. Free for WVWA members, $10 for non-members. 

Bird Walk at Briar Hill

Tuesday, November 12 | 7:30 to 8:30 a.m.

Join us before you start your day for a 30-45 minute bird walk at Briar Hill Preserve. Meet at the Prophecy Creek Park parking lot, 205 W Skippack Pike, Ambler, PA 19002. Free for members and children under 12, $10 for non-members. 

Mill Open House

Sunday, November 17 | 1:00 to 4:00 p.m.

Take a tour of Montgomery County's only water-powered gristmill and blacksmith shop. 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. Event is free, donations accepted. Evans-Mumbower Mill is located on the Wissahickon Creek at Swedesford & Township Line Roads in North Wales, PA.

4-Mile Ambler Loop Hike

Saturday, November 30 | 3:00 to 5:00 p.m.

Join Conservation Crew member Harm Scherpbier on an exploration of the Green Ribbon Trail from Ambler Borough. Hike along the trail as well as the Wissahickon Waterfowl Preserve. This 4-mile hike will show you 3 ways to connect from Ambler into the Green Ribbon trail. We’ll begin and end at Forest & Main Brewing Company, staying for a drink after the hike. Hike is free.

Wreath Making Workshop

Thursday, December 5 | 6:30 to 8:30 p.m.

Decorate for the holidays the natural way. We'll have the supplies, you bring the creativity and imagination! This program is presented in partnership with Weavers Way Co-op at WVWA's historic Four Mills Barn. Free for members and children under 12, $10 for non-members. 

Audubon Christmas Bird Count

Saturday, December 14 | 8:30 a.m. to 12:30 p.m.

Participate in the 120th Audubon Christmas Bird Count! Join WVWA staff and explore Four Mills Reserve and Willow Lake Preserve for winter species. If we are lucky, Yellow-bellied Sapsucker, Red-breasted Nuthatch and Winter Wren will have arrived! Free for members and children under 12, $10 for non-members. More information on the Christmas Bird Count can be found here.


Summer & Fall 2019 Newsletter

A look behind the scenes of current and upcoming projects.

Walk the Wissahickon

Thanks to our Walk the Wissahickon sponsors for their generous support.

Naturalist Interviewed about Butterfly Program

On Saturday, 9/28 WVWA held a Butterfly ID Walk at Temple University’s Ambler Campus.


WVWA’s volunteer community is a diverse group of committed individuals, families, and groups that work to support the mission of the organization in many different ways. Volunteer opportunities include: Conservation Crew, Education, Evans-Mumbower Mill, Special Events, Citizen Science, Creek Watch Program, and Group Service Projects.

For information about our volunteer opportunities, click here.