Mackinac County · Michigan

Manistique Lake

Soundings in feet · 10,346 acres · deepest 20 ft

Today on the lake

Updated 9 Oct 2026, 2:56 am EDT. Get alerts for Manistique Lake

WEATHEROvernight: partly cloudy, 41°F, wind W 5 to 10 mph. Friday: sunny, 60°F, wind NW 5 mph.

WARNINGSNo weather or fire warnings in effect.

FIRENo wildfires or prescribed burns reported within 25 miles.

BURNINGCampfires and debris burning: check today's status with Michigan DNR.

ALGAECAUTION Satellite detected cyanobacteria across about 28% of the lake on 28 Sep 2026, the latest clear-sky image.

LAUNCHESCurtis and County Line - Manistique Lake and Cooks Bay: listed open. Michigan DNR record updated 3 Apr 2026.

National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings, fires and satellite refresh when you open the page (checked at most hourly).

Depth map

4 contours, 5 to 20 ft

05101520feet

Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.

Size and depth

10,346 acres · deepest 20 ft (measured) · shoreline about 25.1 mi · clarity about 9 ft

Manistique Lake is the largest of the 82 named lakes of 10 acres or more in Mackinac County. By Michigan DNR survey it is the 3rd deepest of the 24 with a measured depth. Its water is clearer than 64 of the other 67 lakes in the county with satellite clarity readings. Its shoreline measures about 25.1 miles along the state outline. About 53% of its area is deeper than 10 ft.

Ranks against Mackinac County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure

Getting on the water

3 public access sites on Manistique Lake.

Curtis · Portage Township · Open

1 ramp lane · 17 trailer spaces · 15 car spaces · vault toilet

Local boating rules, Mackinac County

County Line - Manistique Lake · Open

1 ramp lane · 15 trailer spaces · 5 car spaces · vault toilet · accessible restroom · Recreation Passport required

Local boating rules, Mackinac County

Cooks Bay · Open

1 ramp lane · 5 trailer spaces · vault toilet · accessible restroom · Recreation Passport required

Local boating rules, Mackinac County

Michigan DNR boating access, fetched 7 Oct 2026.

Fishing

Michigan DNR has stocked Manistique Lake 15 times since 1979. The most recent stocking was 6,400 walleye on 23 October 2023. Species stocked: walleye.

15 stockings, 1979 to 2023, log scale

Latest: 23 Oct 2023: 6,400 walleye.

23 Oct 2023STOCKED6,400 walleye

21 Oct 2022STOCKED6,400 walleye

4 Oct 2019STOCKED3,000 walleye

17 Oct 2017STOCKED3,000 walleye

28 Oct 2013STOCKED2,500 walleye

18 Oct 2012STOCKED2,500 walleye

Source: Michigan DNR Fisheries, fetched 7 Oct 2026. How we measure

Where the deep water is

Show water deeper than

Measured from Michigan DNR contours. How we measure

Historically recorded species, from records through 1987: bluegill, bluntnose minnow, brook stickleback, common shiner, iowa darter, johnny darter, lake herring, mimic shiner, mottled sculpin, northern logperch, northern pike, sand shiner, smallmouth bass, spottail shiner, walleye, white sucker, yellow perch. Historic records, not a current survey.

Michigan Fish Atlas.

Water quality

Average water clarity is about 9 ft (Secchi depth 2.7 m, satellite readings 2018–23).

Clarity 8.8 ft of 20 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

Email me about Manistique LakeWhen it is stockedMichigan DNR has stocked Manistique Lake 15 times since 1979, most recently 6,400 walleye on 23 October 2023. None so far in 2026.When algae is reported or testedMichigan DHHS has no records for this lake yet. We email when the first one is posted.When satellite sees a bloom startEPA satellite, checked daily, June to October. We email when a bloom first shows on two clear days, not every day it stays. In 2026 that happened on 12 Jun.Any lake in Mackinac CountyStockings and algae records on every lake in the county. In 2026 so far: 1 email.

In 2026 so far, these alerts would have sent you 1 email about Manistique Lake: 12 Jun.

Email address

At most one email a week per lake. We email you a link to confirm before any alert is sent; every email has a one-click unsubscribe.

Nearby lakes with measured depth

South Manistique Lake29 ft deep · 3.2 mi · Mackinac County

North Manistique Lake50 ft deep · 3.4 mi · Luce County

Kennedy Lake8 ft deep · 5.5 mi · Schoolcraft County

Crescent Lake17 ft deep · 5.8 mi · Schoolcraft County

Locke Lake10 ft deep · 6.3 mi · Luce County

McCormick Lake15 ft deep · 6.4 mi · Luce County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Manistique Lake?

Manistique Lake is 20 feet at its deepest point, measured by Michigan DNR survey. It covers 10,346 acres.

Is there a public boat launch on Manistique Lake?

Yes. 3 public access sites are listed: Curtis; County Line - Manistique Lake; Cooks Bay.

Is Manistique Lake stocked with fish?

Yes. Michigan DNR has stocked it 15 times since 1979, most recently 6,400 walleye on 23 October 2023.

How much of Manistique Lake is deeper than 10 feet?

About 53% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.