4 miles southwest of Barryton
Mecosta County, Michigan · 43.7170° N, 85.2169° W
Directions to Big Evans LakeApple Maps
Directions open in Google or Apple Maps, to the Michigan DNR public access sites (3 listed; this is the first).
Updated 14 Oct 2026, 6:24 pm EDT. Get alerts for Martiny Lake
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).
Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.
1,663 acres · deepest 40 ft (measured) · shoreline about 37.1 mi · clarity about 13 ft
Martiny Lake is the largest of the 71 named lakes of 10 acres or more in Mecosta County. By Michigan DNR survey it is the 10th deepest of the 26 with a measured depth. Its water is clearer than 41 of the other 56 lakes in the county with satellite clarity readings. Its shoreline measures about 37.1 miles along the state outline. About 31% of its area is deeper than 20 ft.
Ranks against Mecosta County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
3 public access sites on Martiny Lake.
Michigan DNR boating access, fetched 7 Oct 2026.
Average water clarity is about 13 ft (Secchi depth 3.9 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
24 other lakes of 10+ acres within about 6 miles of Martiny Lake, 3 with a page here (darker blue); 3 public launches in magenta. Sources: Michigan DNR, US Census Bureau.
Michigan DNR survey; straight-line miles.
Martiny Lake is 40 feet at its deepest point, measured by Michigan DNR survey. It covers 1,663 acres.
Yes. 3 public access sites are listed: Big Evans Lake; Winchester Dam; Lower Evans Lake.
About 100% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.