Michigan Porch

Porch Notes

The lake in the Irish Hills that wasn't there in 1960

Outdoors

lakes hillsdale county

If you’d driven through Somerset Township in 1960, Lake LeAnn wouldn’t have been there. Most of it is farmland that got flooded on purpose.

In the early 1960s, developers assembled around 1,250 acres of farms and a few small natural lakes in the Irish Hills, dammed and dug it into two connected basins, and platted the shoreline for sale. The result is a built lake: roughly 470 acres of water, about nine miles of shoreline, and more than 2,200 lots laid out across a string of subdivisions. It’s an “all-sports” lake, which in Michigan means powerboats, skiers, and tubers all share the water — the busy kind of summer lake, not the quiet kind.

That busyness is exactly why the state stepped in. The DNR has written special watercraft controls for Lake LeAnn: on the side bays — Waldron, Cedar Court, Lemott, and Evelyn — and the channels that connect them to the main lake, you’re held to slow-no-wake speed. Those rules aren’t just neighborly suggestions. DNR administrative rules carry the force of state law, and the conservation officers who patrol the lake write real tickets for ignoring them.

It’s a particular Michigan story: a place that feels timeless — pontoon boats, a flag on every dock, kids off the end of a raft — that a bulldozer and a survey crew willed into existence inside one decade. The Irish Hills around it are glacier-old. The lake reflecting them is younger than color television.

Sources

Last reviewed against the listed sources: June 26, 2026.

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In Michigan, who needs a boating safety certificate to operate a personal watercraft (like a Jet Ski) on their own?

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