Updated 9 Oct 2026, 3:03 am EDT. Get alerts for Devils 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.
813 acres · deepest 5 ft (measured) · shoreline about 11.7 mi · clarity about 4 ft
Devils Lake is the 4th largest of the 16 named lakes of 10 acres or more in Alpena County. By Michigan DNR survey it is the 5th deepest of the 5 with a measured depth. Its water is clearer than 4 of the other 13 lakes in the county with satellite clarity readings. Its shoreline measures about 11.7 miles along the state outline. About 23% of its area is deeper than 3 ft.
Ranks against Alpena County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
Average water clarity is about 4 ft (Secchi depth 1.1 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
Michigan DNR survey; straight-line miles.
Devils Lake is 5 feet at its deepest point, measured by Michigan DNR survey. It covers 813 acres.