Pratt Lake, Gladwin County, MI: Depth Map, Fishing & Water Quality

Where it is

4 miles northwest of Gladwin

Gladwin County, Michigan · 44.0258° N, 84.5481° W

Directions to Pratt Lake Apple Maps

Directions open in Google or Apple Maps, to the Michigan DNR public access site.

Today on the lake

Updated 10 Oct 2026, 12:22 am EDT. Get alerts for Pratt Lake

WEATHEROvernight: partly cloudy, 47°F, wind E 0 to 5 mph. Saturday: mostly sunny, 77°F, wind SE 5 to 10 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.

ALGAEToo small for satellite monitoring (under 1 km²). No bloom reports on record with Michigan DHHS.

LAUNCHESPratt Lake: listed open. Michigan DNR record updated 1 Jul 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

5 contours, 5 to 25 ft

0510152025feet

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

Size and depth

188 acres · deepest 25 ft (measured) · shoreline about 3.6 mi · clarity about 10 ft

Pratt Lake is the 9th largest of the 31 named lakes of 10 acres or more in Gladwin County. By Michigan DNR survey it is the 9th deepest of the 13 with a measured depth. Its water is clearer than 13 of the other 22 lakes in the county with satellite clarity readings. Its shoreline measures about 3.6 miles along the state outline. About 37% of its area is deeper than 15 ft.

Ranks against Gladwin 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

1 public access site on Pratt Lake.

Pratt Lake · Clare Field Office · Open

1 ramp lane · 10 trailer spaces · vault toilet · Recreation Passport required

Local boating rules, Gladwin County

Michigan DNR boating access, fetched 7 Oct 2026.

Fishing

Michigan DNR has stocked Pratt Lake 23 times since 1986. The most recent stocking was 9,029 walleye on 16 June 2026. Species stocked: walleye, yellow perch.

23 stockings, 1986 to 2026, log scale

Latest: 16 Jun 2026: 9,029 walleye.

16 Jun 2026STOCKED9,029 walleye

25 Jun 2024STOCKED10,248 walleye

29 Oct 2022STOCKED1,493 walleye

28 Oct 2022STOCKED880 walleye

22 Jun 2022STOCKED19,360 walleye

22 Oct 2019STOCKED2,000 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

Water quality

Average water clarity is about 10 ft (Secchi depth 3.1 m, satellite readings 2018–23).

Clarity 10.2 ft of 25 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

The area around Pratt Lake

10 other lakes of 10+ acres within about 6 miles of Pratt Lake, 1 with a page here (darker blue); 1 public launch in magenta. Sources: Michigan DNR, US Census Bureau.

Nearby lakes with measured depth

Wiggins Lake25 ft deep · 1.8 mi · Gladwin County

Peach Lake15 ft deep · 3.2 mi · Gladwin County

Round Lake30 ft deep · 5.2 mi · Gladwin County

Grass Lake8 ft deep · 6.5 mi · Gladwin County

Blue Lake48 ft deep · 6.7 mi · Gladwin County

Streaked Lake25 ft deep · 7.1 mi · Gladwin County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Pratt Lake?

Pratt Lake is 25 feet at its deepest point, measured by Michigan DNR survey. It covers 188 acres.

Is there a public boat launch on Pratt Lake?

Yes. 1 public access site is listed: Pratt Lake.

Is Pratt Lake stocked with fish?

Yes. Michigan DNR has stocked it 23 times since 1986, most recently 9,029 walleye on 16 June 2026.

How much of Pratt Lake is deeper than 10 feet?

About 48% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.