River MI

Plum River

Michigan • 42.1739, -90.0620

Reviewed mapped path Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

47 mi

75 km

Elevation

989′ → 586′

403 ft drop

Stream Order

Medium River

Slope

0.16%

8.7 ft/mi

Drainage

288 mi²

747 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

1,295 mi

2,084 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Detailed hydrology

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