River MI

Primrose Branch

Michigan • 42.9112, -89.6920

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

6 mi

10 km

Elevation

1,079′ → 877′

202 ft drop

Stream Order

Medium River

Slope

0.61%

32.0 ft/mi

Drainage

9 mi²

23 km²

Avg Flow

-- cfs

0.9 mph velocity

Path to Mouth

1,395 mi

2,244 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

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

Rain Radar