River KS

North Fork Black Vermillion River

Kansas • 39.8101, -96.2700

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

25 mi

41 km

Elevation

1,466′ → 1,152′

313 ft drop

Stream Order

Medium River

Slope

0.24%

12.4 ft/mi

Drainage

115 mi²

299 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

1,752 mi

2,819 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