Lac Vieux Desert is the official headwaters of the Wisconsin River, which exits from the lake's southwest corner and flows over 400 miles south through Wisconsin to the Mississippi River. The lake is fed primarily by springs in surrounding swamps rather than major tributary streams. Its position at the very top of the Wisconsin River watershed makes it a hydrologically significant lake despite its moderate size.
At 40 feet max depth with a mostly flat bottom, Lac Vieux Desert freezes reliably and is a popular ice fishing destination. Anglers target perch and northern pike across the lake. As always on a 4,200-acre lake, check ice conditions carefully — spring-fed areas can thin unpredictably.
How big is Lac Vieux Desert?
What fish are in Lac Vieux Desert?
Can you ice fish on Lac Vieux Desert?
Is Lac Vieux Desert the source of the Wisconsin River?
Where is Lac Vieux Desert?
Is there a boat launch on Lac Vieux Desert in Michigan?
Are there campgrounds near Lac Vieux Desert?
Can you swim in Lac Vieux Desert?
Is there a weed problem on Lac Vieux Desert?
Lac Vieux Desert is a 4,260-acre border lake split between Gogebic County, Michigan, and Vilas County, Wisconsin — and it's the headwaters of the Wisconsin River, which flows out of its southwest corner. That's a notable distinction: one of the Midwest's major river systems starts right here. The lake stretches about two miles wide with a max depth of 40 feet, fed primarily by springs in the surrounding swamps. The northeastern lobe is dotted with small islands, including Draper Island on the Michigan side and Duck Island on the Wisconsin side, creating interesting structure for fishing and exploring by canoe or kayak.
Fishing is the main draw. Anglers report strong panfish action — crappie, perch, and bluegill — along with northern pike and musky, though musky fishing can be hit-or-miss. Ice fishing is popular and reportedly reliable; the lake's moderate depth and relatively flat bottom mean you can set up almost anywhere and find perch and northerns. Vegetation has been increasing in recent years, which is worth noting for boaters. The nearest supply town is Land O' Lakes on the Wisconsin side. Multiple resorts line the shore, and there are several campgrounds nearby including options in the Ottawa National Forest. The single Michigan-side launch is well-maintained with good parking and gets a 4.6-star rating.