Willow Flowage
By Lynne. 4,217 acres, 30 feet at the deepest.
Ice on Willow Flowage
No ice reports from Willow Flowage in the last two weeks.
What folks saw out there, not the DNR. No ice is safe ice; check it yourself.
Fish
- Plenty of: panfish
- Common: northern pike and walleye
- Also there: musky, largemouth bass and smallmouth bass
How the DNR lists them. It doesn't say how the fishing is.
Boat landings
- - off Willow Dam Rd, Near DamMap · DNR details
- Public landingMap · DNR details
- Off Rozell RdMap · DNR details
- - off Willow Dam RdMap · DNR details
Water and bottom
- Bottom: 85% sand, 8% gravel, 2% rock, 5% muck
- Kind of lake: a drainage lake: a stream runs in and out
Invasive species
The DNR has found banded mystery snail, Chinese mystery snail, Eurasian water-milfoil and rusty crayfish here.
State law: before you leave the landing, pull off any plants and critters, drain all the water out of your boat, motor, livewell and buckets, and never move live fish away from the lake.
Depth map
Wisconsin DNR lake survey map, mapped June 1983. Mind the north arrow; some of these old maps are turned sideways. It's old and not for navigation; shorelines and depths change. The DNR lists the lake at 4,217 acres today. The DNR's original (PDF)
Lake facts from the Wisconsin DNR's page for Willow Flowage, checked October 26, 2026.