River TX

Arroyo Negro

Texas • 28.6266, -99.5944

Length

26 mi

41 km

Elevation

702′ → 449′

253 ft drop

Stream Order

5

Medium River

Slope

0.19%

9.8 ft/mi

Drainage

283 mi²

734 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

302 mi

486 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

EPA WQP MyWaterway

Data from USGS & NOAA for informational purposes only. More