Oncorhynchus mykiss, lake-run rainbow trout — 13 Wisconsin rivers on this map carry a run of it, Lake Michigan and Lake Superior. 13 of them are inside a window as of 1 October 2026.
Steelhead, *Oncorhynchus mykiss*, the lake-run rainbow trout, run 13 Wisconsin rivers split between two lakes, and the split is the thing to know: the Lake Superior rivers carry a Sept–May window peaking April into May, while the Lake Michigan rivers run Oct–May and peak March into April. The windows are month-grained. The longest corridors are Superior's — the Nemadji at 70.2 miles and the Amnicon at 42.6 — then the Sheboygan at 40.7 on Lake Michigan, the Bois Brule at 40.4 and the East Twin at 40.4, the Milwaukee at 29.8, the Kewaunee at 26.1, the Iron River in Bayfield County at 23.0, the Sioux at 15.3 and the Oconto at 14.0.
A chrome rainbow off the lake, the stripe faint on a fresh fish and loud on one that has wintered in the river. Five to twelve pounds. Two runs on one calendar: a fall push that winters in the river and a spring run onto the gravel.
13 run rivers on 2 shores, drawn one shore at a time and each river in the colour of its own run stage today. One frame over all of them would be mostly open water.
Drawn 1 October 2026. The ground is the subbasin mesh the app scores in, so the coastline is where the mesh stops rather than a separate shoreline; the mark at each river is its mouth, drawn for every river including the handful whose whole run corridor is under a mile and has no line to show.
Ranked by the rivers the staging estimator models first — the sixteen systems with a USGS temperature gauge behind them — then by corridor miles. Neither is a measure of fishing, and nothing on this page ranks a fishery.
| River | Lake | Window | Peak | Miles | Stage |
|---|---|---|---|---|---|
| Nemadji River | Superior | Sept–May | Apr–May | 70.2 | First runners |
| Amnicon River | Superior | Sept–May | Apr–May | 42.6 | First runners |
| Sheboygan River | Michigan | Oct–May | Mar–Apr | 40.7 | Staging |
| Bois Brule River | Superior | Sept–May | Apr–May | 40.4 | First runners |
| East Twin River | Michigan | Oct–May | Mar–Apr | 40.4 | Staging |
| Milwaukee River | Michigan | Oct–May | Mar–Apr | 29.8 | Staging |
| Kewaunee River | Michigan | Oct–May | Mar–Apr | 26.1 | Staging |
| Iron River (Bayfield County) | Superior | Sept–May | Apr–May | 23.0 | First runners |
| Sioux River | Superior | Sept–May | Apr–May | 15.3 | First runners |
| Oconto River | Michigan | Oct–May | Mar–Apr | 14.0 | Staging |
| Flag River | Superior | Sept–May | Apr–May | 13.0 | First runners |
| Peshtigo River | Michigan | Oct–May | Mar–Apr | 9.4 | Staging |
| Cranberry River | Superior | Sept–May | Apr–May | 8.8 | First runners |
Stage as of 1 October 2026. It moves every day and this page does not — current conditions are here.
A chrome rainbow off the lake, the stripe faint on a fresh fish and loud on one that has wintered in the river.
Five to twelve pounds, and bigger on the Manistee-type rivers.
Two runs on one calendar: a fall push that winters in the river and a spring run onto the gravel. The fall fish are the reason a January river is not empty.
Great Lakes tributary rules are not the inland trout rules, and they differ by river and often by reach. Wisconsin's regulation summary is here; the state's own guide is the regulation.