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Calendar of Events

Upcoming by Date

  • BioBlitz!

    This program is canceled.

    8:00 - 10:00 a.m.
    Help WVWA staff identify as many species as we can during this mini-BioBlitz. These surveys of the species on our preserves help us create our land management plants. We will be using the free iNaturalist app to document all of the species that we encounter. Please download the app and set up an account prior to the event. Instructions on how to use the app will be given at the event.

  • Mill Open House & Ice Cream Social

    1:00 p.m. - 4:00 p.m.
    Take a break from the heat and join us for a cool treat and tour the only fully operational gristmill in Montgomery County! Guides will take you for a fascinating tour to see the mill in operation and give you a history of milling on the Wissahickon Creek. This event is free. 

  • Advocacy Workshop

    6:30 - 8: 00 p.m.
    Have you ever wanted to communicate with your local, state, or federal officials but weren't sure how, or what actions would be most impactful? Join us to hear from experts at League of Conservation Voters of PA and learn how to effectively communicate, prepare public comments,  and craft the right message for your elected representatives!

  • Birds & Brews

    6:00 - 9:00 p.m.
    Join us for our 5th Annual Common Nighthawk Migration. The Militia Hill Hawk Watch at Fort Washington State Park spends a few evenings in August each year watching for migrating Common Nighthawks. The last four years, we've managed so see some pretty big flocks pass overhead, so, let’s do it again! After viewing the migrating nighthawks, we will gather at Magerk's Pub for food and brews.

  • Chimney Swift Bird Walk

    6:30 - 8:30 p.m.
    Join us to learn all about Chimney Swifts and our conservation efforts for this unique bird. Learn what resources are available that you can use to help monitor and protect these birds. Location is dependent on Chimney Swift’s travel plans, check our website for more information as we get closer to the event. 

  • Monarch Tagging Pop-up Events

    September 3 to October 15
    Every Tuesday from 9-10:30 a.m. and every Thursday from 5:30-7 p.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. Staff will discuss monarch life-cycle and migration.

  • 8-Mile Crossways Connection Hike

    9:00 a.m. - 1:00 p.m.
    Meet and park at the Four Mills Barn. From there we will hike on the Green Ribbon Trail to Penllyn Woods, connect with the County Trail which will take us to Crossways Preserve (the halfway point) and then return on the same path to the Barn. This hike will show the connection between the Green Ribbon Trail, the County Trail and WVWA's Crossways Preserve. 

  • Native Plant Gardening

    6:00 - 7:30 p.m.
    Learn about how to design and create a native plant garden; one that specializes in attracting pollinators (like hummingbirds), and fall blooms for thirsty migrating Monarchs. 

  • Fall Mill Festival

    1:00 p.m. - 4:00 p.m.
    Celebrate traditions from times past at the Fall Mill Festival.  Take a tour of Montgomery County's only water-powered gristmill and experience many hands-on, family-friendly demonstrations including tin smithing, corn husk dolls, Lenni-Lenape story teller, and more.

  • Managing Stormwater at Home

    6:30 - 8:30 p.m.
    Stormwater runoff is one of the main stressors to the health of the Wissahickon Creek. Join us for a lecture by Zach Popkin from Pennsylvania Horticultural Society's Rain Check program to learn about ways you can manage stormwater on your property.

  • Butterfly ID Walk

    10:00 a.m. - 12:00 p.m.
    Learn about the wonderful world of butterflies during this introductory workshop and nature walk! Join Wissahickon Valley Watershed Association (WVWA) naturalist Kristy Morley to learn the basics of butterfly life cycles, identification and how to support them on your own property. Following the indoor session, we will take a walk around the Temple Ambler Arboretum gardens and meadows to search for these colorful and fascinating pollinators.

  • Walk the Wissahickon

    Walk begins at 8:00 a.m.
    Take a guided walk on the 21-mile Green Ribbon Trail and support WVWA's mission of engaging diverse communities of people to protect, steward and enjoy the land and waterways of the Wissahickon Valley. Start in North Wales and follow the Trail along Wissahickon Creek for the either 5, 8,13 or all 21 miles. All of the walks are guided and you are bussed back to the starting point. 

  • Serve the Preserve

    9:00 a.m. - 12:00 p.m.
    Help WVWA continue our restoration efforts at one of our preserves. Volunteers will remove invasive plants or plant native trees and shrubs. Please wear sturdy shoes for digging. Bring a shovel and gloves if you have them; otherwise we will provide.

  • Birds & Brews

    8:00 a.m. - 12:00 p.m.
    Willow Lake Preserve is great for migrating fall warblers. Join us for a walk in the preserve and then for brunch at Panache Woodfire Grill in Blue Bell.
  • Green Ribbon Gala

    5:00 - 7:00 p.m.
    Join us for an evening of cocktails, hors d'oeuvres, live music and good company as we celebrate the legacy of open space preservation in our region. RSVP required. 

  • Craft Beer by the Creek

    1:00 - 4:00 p.m.
    Craft Beer by the Creek is back by popular demand! For this family (and dog!) friendly event we’ll have Roasted Liberties food truck, local craft beer and hard cider, and live music by Acoustic Keys.

  • Family Friendly Ghost Tour & Pumpkin Painting

    5:00 p.m. - 8:00 p.m.
    Evans-Mumbower Mill 
    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 5-6 p.m. Nominal charge for pumpkins. 

  • 5-Mile Green Ribbon Trail Race

    9:00 a.m. start
    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.

  • Your Home is Their Home

    7:00 p.m.
    Come 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.

  • All About Owls

    7:00 p.m. - 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 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!

  • 6 Mile, 6 Preserve Hike

    3:00 p.m.
    This is a unique hike for the serious hiker: an amazing 6-mile loop-hike connecting various WVWA-protected properties, and taking you from the creek through woods, fields and farm land.  We will go through Camp Woods, Armentrout Preserve, Briar Hill Preserve, Prophecy Creek Park, and Willow Lake Farm - and of course the Green Ribbon Trail.

  • Bird Walk

    7:30 a.m.
    Join us before you start your day for a 30-45 minute bird walk at Briar Hill Preserve. We will meet every other month (second Tuesday) at 7:30 A.M to explore a variety of preserves over the year and will have the opportunity to see different birds throughout the seasons.

  • Mill Open House & Millrace Hike

    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. 

  • 4-Mile Ambler Loop Hike

    3:00 p.m.
    Come see the ins and outs of our trails through the eyes of the Conservation Crew. Join 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 hike will show you 3 ways to connect from Ambler into the Green Ribbon trail. We’ll begin and end at Forest and Main, staying for a drink after the hike!


  • Wreath Making with Weavers Way Co-op

    6:30 - 8:30 p.m.

    Decorate for the holidays the natural way. We'll have the supplies, you bring the creativity and imagination!

  • Audubon Christmas Bird Count

    8:30 a.m. - 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. We will continue the Christmas Bird Count at our Willow Lake Preserve at the conclusion of the first walk, participants are welcome to join that walk as well.