River MN MI WI

East Branch Rock River

Minnesota • 44.0353, -96.1353

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

17 mi

28 km

Elevation

1,908′ → 1,648′

260 ft drop

Stream Order

Medium River

Slope

0.29%

15.1 ft/mi

Drainage

190 mi²

493 km²

Avg Flow

134 cfs

1.1 mph velocity

Path to Mouth

4,155 mi

6,686 km to ocean

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

Access Sites on East Branch Rock River

There are 1 boat ramps, launches, and public access points on East Branch Rock River.