Sullivan Lake sits in the glacial lake country of western Washtenaw County near the Pinckney Recreation Area, which contains part of the Huron River watershed. Specific inflows and outflows for Sullivan Lake are not well documented.
Small lakes in this part of Washtenaw County typically freeze reliably in winter, though exact ice conditions vary year to year. Always check ice thickness before venturing out. Ice fishing pressure here is likely minimal.
Where is Sullivan Lake in Michigan?
Is there a boat launch on Sullivan Lake?
What fish are in Sullivan Lake?
Can you swim near Sullivan Lake?
Are there campgrounds near Sullivan Lake?
Is Sullivan Lake crowded?
Sullivan Lake is a small lake in Washtenaw County near the Pinckney Recreation Area — one of southeastern Michigan's best stretches of public land for hiking, mountain biking, and camping. The lake has a single boat launch and sits in a relatively quiet corner of the county. With Pinckney Rec Area beaches nearby, this is more of a local paddle-and-fish spot than a destination lake.
Details on Sullivan Lake's exact acreage and depth are limited, but its location in the glacial lake country between Ann Arbor and Pinckney puts it among dozens of small kettle lakes in the area. Expect warm-water species like bass, bluegill, and panfish. The single launch and minimal development suggest a low-traffic experience — good news if you're looking to get a canoe or kayak on the water without crowds.