River AR

Mound Bayou

Arkansas • 33.3707, -90.6166

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

35 mi

56 km

Elevation

145′ → 88′

58 ft drop

Stream Order

Large River

Slope

0.03%

1.6 ft/mi

Drainage

1,393 mi²

3,608 km²

Avg Flow

-- cfs

1.8 mph velocity

Path to Mouth

655 mi

1,054 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