Joslin Lake, Washtenaw County, MI: Depth Map, Fishing & Water Quality

Where it is

6 miles east of Stockbridge

Washtenaw County, Michigan · 42.4177° N, 84.0710° W

Directions to Joslin 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, 12:46 am EDT. Get alerts for Joslin Lake

WEATHEROvernight: mostly cloudy, 56°F, wind SE 7 mph. Saturday: partly sunny, 74°F, wind SE 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.

LAUNCHESJoslin Lake: 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

6 contours, 5 to 20 ft

05610131520feet

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

Size and depth

194 acres · deepest 20 ft (measured) · shoreline about 2.4 mi · clarity about 6 ft

Joslin Lake is the 12th largest of the 84 named lakes of 10 acres or more in Washtenaw County. By Michigan DNR survey it is the 29th deepest of the 45 with a measured depth. Its water is clearer than 13 of the other 66 lakes in the county with satellite clarity readings. Its shoreline measures about 2.4 miles along the state outline. About 6% of its area is deeper than 10 ft.

Ranks against Washtenaw 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 Joslin Lake.

Joslin Lake · Pinckney State Recreation Area · Open

1 ramp lane · 16 trailer spaces · 8 car spaces · Recreation Passport required

Local boating rules, Washtenaw County

Michigan DNR boating access, fetched 7 Oct 2026.

Fishing

Michigan DNR has stocked Joslin Lake 5 times since 1995. The most recent stocking was 16,602 redear sunfish on 1 October 1997. Species stocked: redear sunfish.

5 stockings, 1995 to 1997, log scale

Latest: 1 Oct 1997: 16,602 redear sunfish.

1 Oct 1997STOCKED16,602 redear sunfish

22 Oct 1996STOCKED5,540 redear sunfish

24 Sep 1996STOCKED1,950 redear sunfish

19 Sep 1995STOCKED16,446 redear sunfish

18 Sep 1995STOCKED2,254 redear sunfish

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 1998: redear sunfish. Historic records, not a current survey.

Michigan Fish Atlas.

Water quality

Average water clarity is about 6 ft (Secchi depth 1.8 m, satellite readings 2018–23).

Clarity 6.0 ft of 20 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

The area around Joslin Lake

68 other lakes of 10+ acres within about 7 miles of Joslin Lake, 8 with a page here (darker blue); 1 public launch in magenta. Sources: Michigan DNR, US Census Bureau.

Nearby lakes with measured depth

Ellsworth Lake25 ft deep · 1.4 mi · Washtenaw County

Sullivan Lake22 ft deep · 1.6 mi · Washtenaw County

South Lake88 ft deep · 1.6 mi · Washtenaw County

Bruin Lake48 ft deep · 1.6 mi · Washtenaw County

Eagle Lake20 ft deep · 1.6 mi · Washtenaw County

Snyder Lake29 ft deep · 1.9 mi · Washtenaw County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Joslin Lake?

Joslin Lake is 20 feet at its deepest point, measured by Michigan DNR survey. It covers 194 acres.

Is there a public boat launch on Joslin Lake?

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

Is Joslin Lake stocked with fish?

Yes. Michigan DNR has stocked it 5 times since 1995, most recently 16,602 redear sunfish on 1 October 1997.

How much of Joslin Lake is deeper than 10 feet?

About 6% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.