Creek SD

Swan Lake Creek

South Dakota • 45.3870, -99.7581

Hydrography profile Updated Feb 1, 2026

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

30 mi

48 km

Elevation

2,175′ → 1,854′

321 ft drop

Stream Order

Medium River

Slope

0.20%

10.8 ft/mi

Drainage

87 mi²

224 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).

Loading the interactive map…

Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar