Portage Lake
Onekama Township
Manistee County MI

Portage Lake is becoming a prominent feature of Onekama Township. It is situated eight or ten miles north of Manistee, about midway between Point Au Sable and Point Aux Becs Scies, distant from each other about fifty miles.

The shore of Lake Michigan here bows to the eastward, forming a sort of shallow bay, and Portage Lake lies at the deepest point of the bow, just inside of the shore of Lake Michigan, from which it is separated by a belt, thirty rods wide, of high, wooded hills. At a depression in this belt, about one mile south of the narrow, crooked and deep gully, which was the original water communication, now closed, between the two lakes, a channel was dug in 1871, and is maintained.

An effort has been made, and is still being made, to secure a harbor of refuge at this point.

History of Manistee, Mason and Oceana counties, Michigan 1882 H.R. Page