2026 regulation year
Petenwell + Castle Rock Lakes (Wisconsin River) 2026 — Wisconsin Fishing Regulations
Wisconsin statewide rules apply unless overridden below.
Last updated
Petenwell + Castle Rock Lakes (Wisconsin River) carries a special-regulation overlay on top of Wisconsin's 2026 fishing rules. Verify the agency booklet before launching: in-season changes are not yet wired to this page.
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State-level special regulation
Walleye + muskie + bass; designated Class A1 muskie management waters with 50 in minimum
Source: Wisconsin special-water list
Official source
Wisconsin Department of Natural Resources publishes the authoritative 2026 Wisconsin fishing regulations. Special-regulation lakes and rivers are listed in the agency booklet — always verify before fishing.
Visit official Wisconsin fishing regulations →
Emergency-order channel
In-season closures, slot-limit changes, and run-count-driven harvest pauses are posted to Wisconsin Department of Natural Resources's emergency-order feed — check it before any Wisconsin trip during the active season.
Other special-regulation waters in Wisconsin
- Apostle Islands (Lake Superior, WI)
- Big Green Lake (Green Lake County)
- Big Spring Branch (Grant County)
- Black Earth Creek (Dane County)
- Bois Brule River
- Bone Lake (Polk County)
- Castle Rock Creek (Grant County)
- Castle Rock Lake
- Chippewa Flowage
- Designated panfish-regulation lakes
- Door County (Lake Michigan)
- Driftless Area spring creeks (SW Wisconsin)
Frequently asked questions
- What special fishing regulations apply at Petenwell + Castle Rock Lakes (Wisconsin River)?
- Petenwell + Castle Rock Lakes (Wisconsin River) carries one special-regulation overlay that overrides Wisconsin's statewide 2026 rules. It reads: "Walleye + muskie + bass; designated Class A1 muskie management waters with 50 in minimum." Every overlay on this water body is listed in full above.
- Do I need a fishing license to fish Petenwell + Castle Rock Lakes (Wisconsin River)?
- Yes. Petenwell + Castle Rock Lakes (Wisconsin River) is in Wisconsin, so a valid Wisconsin fishing license is required just as it is anywhere else in the state, issued by Wisconsin Department of Natural Resources. The special regulations on this page change the bag, size, slot, or gear rules for Petenwell + Castle Rock Lakes; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Wisconsin rules.
- Do Petenwell + Castle Rock Lakes (Wisconsin River)'s special rules replace Wisconsin's statewide limits?
- Only where they conflict. Wisconsin's statewide 2026 regulations apply on Petenwell + Castle Rock Lakes by default; the overlays above replace the matching statewide rule for the species or gear they name, while everything not specifically overridden still follows the statewide rule. When a water-body rule and the statewide rule disagree, the water-body rule wins.