Iron River at Caspian, MI

Iron County, Michigan · USGS gauge 04060500 · NWS CSPM4 · Michigan river levels

Is Iron River at Caspian, MI flooding right now?

Iron River at Caspian, MI measured 3.99 ft on 2026-09-11 01:30:00 UTC. That observation was 7.0 ft below its 11 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

3.99 ft

as of 47 min ago

Streamflow

57 cfs

data refreshed 15 min ago

Minor flooding here begins at 11 ft, with major flooding at 15 ft. The highest crest on record was 10.2 ft on Thu, Jul 2, 1953.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	10 ft	6.0 ft below
Minor flood	11 ft	7.0 ft below
Moderate flood	13 ft	9.0 ft below
Major flood	15 ft	11.0 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
10.2 ft	1953-07-02
9.52 ft	2023-04-13
9.24 ft	1960-04-24
9.15 ft	2020-07-10
9.04 ft	1979-04-22

Nearby gauges

Gauge	Distance	County
Paint River at Crystal Falls, MI	14.4 mi	Iron County
Brule River at US Highway 2 near Florence, WI	16.4 mi	Iron County
Paint River near Alpha, MI	18.0 mi	Iron County
Brule River near Florence, WI	18.6 mi	Iron County
Michigamme River near Crystal Falls, MI	20.1 mi	Iron County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast