River SD

Grand River

South Dakota • 45.5799, -100.5056
Length
181 mi
291 km
Elevation
2,198′ → 1,608′
591 ft drop
Stream Order
8
Major River
Slope
0.06%
3.3 ft/mi
Drainage
5,107 mi²
13,227 km²
Avg Flow
299 cfs
1.7 mph velocity
Path to Mouth
2,378 mi
3,827 km to ocean
Classification
Headwater
Source Stream
Elevation Profile
Water Quality

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

Data from USGS & NOAA for informational purposes only. More

Water Level Gauges on Grand River

There are 2 USGS water level monitoring stations on Grand River providing real-time flow and stage data.

Access Sites on Grand River

There are 66 boat ramps, launches, and public access points on Grand River.