Michigan / Big Portage Lake /

Portage Lake - Ready County Park

Portage Lake - Ready County Park is a public boat ramp on Big Portage Lake near Jackson, Michigan.

Aerial view of the gravel parking area at the lake shore beside the picnic area, September 2022
Aerial view of the gravel parking area at the lake shore beside the picnic area, September 2022 Photo: USDA Farm Service Agency, NAIP · Public domain · via USGS The National Map
Zebra mussels

Zebra mussels (latest report 1998) reported in this water (USGS Nonindigenous Aquatic Species database). Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

USGS Nonindigenous Aquatic Species database · checked October 20, 2026

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2023.

state reports compiled by U.S. EPA · checked October 20, 2026

Status not reported No closure has been posted for this launch, but its agency does not publish open or closed status. Check with the managing agency before you tow.

At the launch

Type
Boat ramp
Website
co.jackson.mi.us
Coordinates
42.33616, -84.22766

Directions (Google) Apple Maps

Depth contours in feet from Michigan DNR. Not for navigation.

Conditions

On Big Portage Lake

Lake in Michigan. All launches on Big Portage Lake.

Nearby launches

Sources

Why it is listed as public: www.co.jackson.mi.us: Portage Lake - Ready County Park Features Boat Launch Fishing Picnic Areas Playground. Something wrong, or is this launch private? Send a correction; it goes to a person.