Little Platte Lake, Benzie County, MI: Depth Map, Fishing & Water Quality

Where it is

3 miles northwest of Honor

Benzie County, Michigan · 44.7032° N, 86.0641° W

Directions to Little Platte 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, 12:20 am EDT. Get alerts for Little Platte Lake

WEATHEROvernight: mostly cloudy, 50°F, wind SE 5 mph. Saturday: sunny, 77°F, wind S 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.

ALGAECAUTION Satellite detected cyanobacteria across about 66% of the lake on 8 Oct 2026, the latest clear-sky image.

LAUNCHESLittle Platte 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

7 contours, 2 to 8 ft

02345678feet

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

Size and depth

896 acres · deepest 8 ft (measured) · shoreline about 6.2 mi · clarity about 3 ft

Little Platte Lake is the 3rd largest of the 38 named lakes of 10 acres or more in Benzie County. By Michigan DNR survey it is the 15th deepest of the 15 with a measured depth. Its water is clearer than 1 of the other 36 lakes in the county with satellite clarity readings. Its shoreline measures about 6.2 miles along the state outline. About 5% of its area is deeper than 5 ft.

Ranks against Benzie 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 Little Platte Lake.

Little Platte Lake · Open

1 ramp lane · 13 trailer spaces · 9 car spaces · vault toilet · Recreation Passport required

Local boating rules, Benzie County

Michigan DNR boating access, fetched 7 Oct 2026.

Water quality

Average water clarity is about 3 ft (Secchi depth 1.1 m, satellite readings 2018–23).

Clarity 3.5 ft of 8 ft

Michigan EGLE satellite clarity, fetched 7 Oct 2026.

The area around Little Platte Lake

10 other lakes of 10+ acres within about 6 miles of Little Platte Lake, 2 with a page here (darker blue); 1 public launch in magenta. Sources: Michigan DNR, US Census Bureau.

Nearby lakes with measured depth

Platte Lake90 ft deep · 2.4 mi · Benzie County

Crystal Lake175 ft deep · 5.5 mi · Benzie County

Lime Lake25 ft deep · 7.4 mi · Benzie County

South Bar Lake13 ft deep · 7.7 mi · Leelanau County

Garey Lake33 ft deep · 8.1 mi · Benzie County

Brooks Lake33 ft deep · 8.7 mi · Benzie County

Michigan DNR survey; straight-line miles.

Common questions

How deep is Little Platte Lake?

Little Platte Lake is 8 feet at its deepest point, measured by Michigan DNR survey. It covers 896 acres.

Is there a public boat launch on Little Platte Lake?

Yes. 1 public access site is listed: Little Platte Lake.