VA · Shenandoah basin · HUC 02070008

Difficult Run

Difficult Run is followed here by 2 USGS gauges, ordered upstream to downstream.

No recent readings are available for these gauges right now, so this page is not reporting a water level. The gauges, their drainage areas and their order along the river are unchanged.

0 of 2 gauges reporting
58sq mi drains to the lowest gauge
14.8mi long, head to mouth

upstream ↑

10 mi Potomac River 11,511 sq mi Little Difficult Run 6.8 sq mi unnamed headwater 11.9 sq mi SQ MISQ MI 4.8 Snakeden Branch 0.8 Angelico Branch 3.9 Piney Branch 7.2 Wolftrap Creek 6.3 Colvin Run 6.7 Captain Hickory Run 3.3 Rocky Run Fair Oaks Difficult Run Oakton Reston Wolf Trap Great Falls McLean Potomac Fairfax Great Falls

downstream ↓

flow gauge selected, chart below water quality site no grade yet town on the river

Fairfax

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5.5 sq mi drains to here also reads water quality
Water Quality
Fairfax
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joins between Fairfax and Great Falls
Unnamed / ungauged inflow~52 sq mi, not measured

Great Falls

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57.8 sq mi drains to here also reads water quality
Water Quality
Great Falls
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