Public Boat Ramps on the Ontonagon River, Michigan

We currently track 1 verified public boat ramps with access to Ontonagon River in Michigan, all located within Ontonagon County. Use the map and ramp listing below to compare launch fees and access details.

1 Boat ramps
1 County
No free ramps confirmed yet
Ontonagon County Top county (1)

Map of the Ontonagon River Boat Ramps

Compare every public boat ramp on the Ontonagon River in one map. See where each launch is located, compare access points, and choose the most convenient place to get on the water.

Boat launch locations on the Ontonagon River

Browse every verified launch site we've published on this waterway, with fee information, nearby towns and access details.

Ontonagon Marina Near Ontonagon · Green Bay · Ontonagon County

Current Conditions

Check the latest weather forecast and available water quality information before heading out. Depending on the location, one or both data sources may be available.

Current weather

54°F Clear

Wind NNE 3 mph

Full NWS forecast · via National Weather Service
Last updated Oct 12, 2026 at 6:13 AM

Frequently asked questions

The questions people ask most often before launching on Ontonagon River.

There are currently 1 public boat ramps on Ontonagon River in Michigan.

We haven't confirmed any free ramps on Ontonagon River yet - check the fee badge on each listing for the latest status.

Ontonagon County has the most, with 1 public boat ramp on Ontonagon River.

Sourced from Michigan Department of Natural Resources.
Data on this page was last updated September 7, 2026, based on the latest ramp data update.