Creek SD

Alum Creek

South Dakota • 43.1558, -103.9319

Hydrography profile Updated Feb 1, 2026

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

35 mi

57 km

Elevation

0′ → 0′

0 ft drop

Stream Order

Medium River

Slope

0.00%

0.0 ft/mi

Drainage

18 mi²

48 km²

Avg Flow

-- cfs

0.9 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

Access Sites on Alum Creek