River SD

Murphy Ditch

South Dakota • 44.0442, -103.1206

Hydrography profile Updated Feb 1, 2026

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

9 mi

15 km

Elevation

3,129′ → 3,013′

116 ft drop

Stream Order

Large River

Slope

0.24%

12.6 ft/mi

Drainage

429 mi²

1,112 km²

Avg Flow

-- cfs

1.4 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