River SD

North Fork Bad River

South Dakota • 44.1417, -101.9296

Hydrography profile Updated Feb 1, 2026

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

51 mi

82 km

Elevation

2,801′ → 2,148′

653 ft drop

Stream Order

Medium River

Slope

0.24%

12.8 ft/mi

Drainage

179 mi²

465 km²

Avg Flow

-- cfs

1.1 mph velocity

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Data from USGS & NOAA for informational purposes only. More