Ontonagon River Water Level

Q: What is the water level of Ontonagon River today?

Ontonagon River water levels are measured at USGS gauge ONTONAGON RIVER NEAR ROCKLAND, MI; the current gauge height updates on this page throughout the day, alongside a 30-day trend.

Q: Is Ontonagon River high or low right now?

This page compares the current reading against the trailing 30-day average and range for Ontonagon River — above the average means higher water than usual, below means lower.

Live gauge height for Ontonagon River, measured at USGS station ONTONAGON RIVER NEAR ROCKLAND, MI (11.6 mi from the nearest mapped ramp).

Current gauge height

5.25 ft

Updated 48 min ago

vs. 30-day average

—

Streamflow

489 cfs

Boat Ramps on Ontonagon River (2)

Ontonagon County Historical Society — Ontonagon Township, Michigan
Ontonagon Marina Boat Launch — Ontonagon Township, Michigan

See all Ontonagon River boat ramps →

Ontonagon River Water Level FAQ

What is the water level of Ontonagon River today?

The USGS gauge for Ontonagon River (ONTONAGON RIVER NEAR ROCKLAND, MI) currently reads a gauge height of 5.25 feet. Readings update throughout the day from USGS instrumentation.

Is Ontonagon River high or low right now?

Compare today's reading with the 30-day chart above — a reading near the top of the range means high water, near the bottom means low water.

Where can I launch a boat on Ontonagon River?

BoatLaunchMap lists 2 boat ramps on Ontonagon River, each with directions, ratings, and launch details.

Data: U.S. Geological Survey, station 04040000. Gauge height is measured relative to the station datum, not lake depth. Always verify conditions on site before launching.