MAPS Lakeside Learning - Wednesday, October 21, 2026 • 5 PM - 6 PM at Topinabee Library.
Summer Target Level: 593.10 feet
Winter Target Level: 592.15 feet
Each 0.1 foot = 1.2"
Click here for full data at USGS site.
According to Michigan DNR, "...the Cheboygan Dam and locks in the town of Cheboygan are maintained by the Michigan Department of Natural Resources (MDNR) and influence the water level of Mullett Lake. The Mullett Lake water level is controlled by the Cheboygan Dam (originally built in 1867) and Great Lakes Tissue Hydroelectric facility through by-pass gates. The gates establish a summer (elev. 593.1 feet) and winter (elev. 592.15 feet) targeted lake level. The levels were set by the Cheboygan County Board of Supervisors in 1934, and have been under DNR control since 1967..."