Start receiving our award-winning magazine today!


Maryland / DC

Bear Island / Potomac Gorge Audio Tour

Just outside DC is an unusual meeting place for plants and animals. The Potomac Gorge encompasses a landscape of great ecological significance and stunning beauty, with 15 globally rare species. Our audio guide will help you navigate Bear Island's renowned Billy Goat Trail, highlighting rare plants and native specimens such as the "Sigafoos tree".

Explore additional tours

Getting Started

Visit the preserve page to plan your visit and then download the audio tour map (PDF). The numbers marked on the map correspond to the audio files in the tour.  Next, download the audio files to your mobile device.

Remember - some of our secluded preserves are spectacular, but you may not get cell service. We recommend you download the recordings and maps before you visit. Need a little help saving the files? Check out our step-by-step guide!

Downloadable Files (mp3 format)
  1. Come Prepared
  2. Dogs and the Billy Goat Trail Section
  3. Great Falls Tavern
  4. Boat Tours
  5. The Great Falls Overlook
  6. Mary's Wall
  7. Common Trees Along the Canal
  8. Start of the Billy Goat Section
  9. The River's Edge on the Billy Goat
  10. Bedrock Terrace Habitat
  11. Sigafoos Trees
  12. Tree Species Along the Billy Goat
  13. Pothole Alley
  14. Potholes
  15. Metagraywacke
  16. River Erratics
  17. Along Pothole Alley
  18. Considering Turning Back
  19. The Asiatic Clam
  20. River Oats
  21. Coming Down off the Rock Terrace
  22. The Traverse
  23. Boat Ramp
  24. Emergency Exit
  25. Purple Horse Beach
  26. Snakes
  27. Maryland Chutes
  28. Ebony Spleenwort
  29. End of Billy Goat Section A
  30. Returning to the Tavern
  31. Wildlife Along the Canal
  32. Canal and Locks
  33. Building the Canal
  34. Washington Aqueduct Dam and Conn

(All files are .mp3 and should download automatically once clicked. If you have trouble downloading, right-click each file and then select "Save")

We’re Accountable

The Nature Conservancy makes careful use of your support.

More Ratings

x animal

Sign up for Nature eNews!

Sign Up for Nature e-News

Get our e-newsletter filled with eco-tips and info on the places you care about most.

Thank you for joining our online community!

We’ll be in touch soon with more Nature Conservancy news, updates and exciting stories.

Please leave this field empty

We respect your privacy. The Nature Conservancy will not sell, rent or exchange your e-mail address. Read our full privacy policy for more information. By submitting this form, you agree to the terms of use.