Dyke Marsh: Explore, Learn and Protect

Friends of Dyke Marsh is a volunteer group dedicated to preserving, restoring and enhancing Dyke Marsh, a freshwater tidal marsh in Fairfax County on the Potomac River just south of Alexandria, Virginia.

The Dyke Marsh Wildlife Preserve is a unit of the George Washington Memorial Parkway and is administered by the National Park Service.

Upcoming Events

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Help Tackle Invasive Plants

Help protect native plants by pulling and clipping invasive plants. We will train volunteers to identify the five or so target plants. We kindly ask that you not bring pets. Invasive plants can threaten and outcompete native plants.

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Dates:
  • May 23, 10 a.m. - 12 p.m.
  • June 6, 10 a.m. - 12 p.m.
  • June 20, 10 a.m. - 12 p.m.
Sign Up
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Bat Walk, September 10
September 10, 7:30 p.m. - 9 p.m.

Join Deborah Hammer, an educator with Bat Conservation and Rescue of Virginia, and learn about our local bats on September 10, 7:30 p.m.

We will use sonar detectors that plug into phones to listen to bats echolocate as they hunt for food. Walking will be minimal and this event is accessible for all. We will identify bats by listening to their echolocation, using sonar detectors If you have an iPhone or Android phone and would like to try one out on your own device, contact Deborah ahead of time at This email address is being protected from spambots. You need JavaScript enabled to view it..

Meet at the Haul Road Trail entrance. Bring a flashlight (red light preferred) and insect repellent.  We will postpone the walk if the weather is problematic at 6 p.m.

To register, click here: FODM Bat Walk RegistrationIf you have questions or need to cancel your reservation, email Deborah This email address is being protected from spambots. You need JavaScript enabled to view it..

 
 
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Discover the Wonders of Dyke Marsh

Habitat

Delve deeper into the wonders of marshes, their vital role in our ecosystem and the unique habitat they provide.

Wildlife

Birds, reptiles, mammals and more, learn about the diversity of wildlife that call Dyke Marsh home.

Plants

Discover the vital role native plants play in supporting biodiversity, restoring habitats and sustaining the ecosystem at Dyke Marsh.

Conservation

Explore our ongoing conservation and restoration efforts and discover how you can make a difference.