River PA

Grays Fork

Pennsylvania • 39.9220, -80.3698

Hydrography profile Updated Jan 19, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

3 mi

5 km

Elevation

1,152′ → 1,013′

139 ft drop

Stream Order

Stream

Slope

0.82%

43.2 ft/mi

Drainage

9 mi²

22 km²

Avg Flow

11 cfs

0.6 mph velocity

Path to Mouth

2,057 mi

3,311 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar