Friends of Ten Mile Creek & Little Seneca Reservoir
    Protecting a clean water resource for the Washington, DC region


Environmental Film Night

Tuesday, February 28, 7:30-9pm
Visitor Center, Black Hill Regional Park

More info on the right —› —›

Come! Enjoy friends, films,

RSVP here.


  Winter Bird Walk with Mark England - Saturday, March 4: 8:30-11:30am

Please join us on this fun morning at Black Hill Visitor Center, where we will see what birds are using the feeders there, and scope some waterfowl from the deck. Then we'll carpool it to other locations around the park, including the boat ramp, the 121 bridge, and Ten Mile Creek. Walkie-talkies are provided to each car so we can stay in touch to let folks know when we are going to stop and point out birds along the way. Please dress warmly, and prepare for a good bit of walking.
Space is limited to 16 people ​
Members: $10

Non-Members: $30* includes 1 year membership with fee ​

Why are Ten Mile Creek and Little Seneca Reservoir Important?

Ten Mile Creek, located near Clarksburg, Maryland, is one of the healthiest waterways remaining in the entire Chesapeake Bay watershed and supports a greater diversity of aquatic life – insects, salamanders, and fish – than any other stream in Montgomery County. The creek is of such high quality that it is considered a “reference stream” which scientists use as a “measuring rod” to judge the health of other area streams.

Ten Mile Creek is also the cleanest tributary flowing into Little Seneca Reservoir, the closest emergency drinking water supply for 4.3 million people in the Washington, DC area. The reservoir is a critical component of our regional drinking water system and a popular recreational resource for canoeing, kayaking, hiking, picnicking, fishing, bird watching, and other activities.

Why Do the Creek and Reservoir Need Friends?

Despite its importance to our regional water system, the Ten Mile Creek watershed is constantly threatened by development proposals. The Friends of Ten Mile Creek and Little Seneca Reservoir, formed in August 2014, aims to protect this watershed from any further development which would degrade its health and impact the quality of water that flows into Little Seneca Reservoir.

We help citizens from around the region connect to this special place, advocate for its protection, and learn about the importance of the creek and reservoir, both as unique ecological treasures and as integral components of our regional drinking water system.

Through our advocacy and education efforts, we hope to inspire a sense of stewardship for these specific resources, and, together with other local watershed groups, to work to protect all streams and rivers in the Potomac and Chesapeake Bay watersheds. Join us!