down it. The different rapids are all classified differently as one goes farther down the stream. The seven rapids that occur in the stream all have classifications that range from Class III to V. The Difficult Run is also famously known for its views of the Potomac and Mather Gorge cliffs.

Recreation

Recreational activities at Difficult Run include hiking, biking, climbing, boating, fishing, and sightseeing. The watershed itself encompasses a few parks and trails originating in Reston and

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