Fishing Regulations · Minnesota
Minnesota Statewide Regulations
These apply across Minnesota. Lake-specific overrides are set by Minnesota and are not listed here.
- Walleye
Statewide bag limit: 6 walleye, only 1 over 20 inches. Possession limit 6 (varies on border waters). Open season typically May 9 — Feb 28.
- Sauger
Statewide bag limit: 6 sauger or walleye-sauger combined. Open season typically May 9 — Feb 28.
- Northern Pike
Statewide three-zone northern pike regs: north zone (10 fish, all sizes); central (2 fish 22–26", plus 8 under 22"); south (2 fish over 24"). See MN DNR for zone map.
- Largemouth Bass · Smallmouth Bass
Statewide bag limit: 6 in combination. Catch-and-release only in late season for some lakes; harvest typically opens late May. Some lakes have special slot or season rules.
- Muskellunge
Statewide minimum 54 inches, daily limit 1. Catch-and-release strongly encouraged due to high mercury and slow growth.
- Lake Trout · Brook Trout · Brown Trout · Rainbow Trout · Splake
Stream trout limit 5 per day; lake trout limit varies by lake (often 2). Designated Trout Lakes have special regulations and require trout stamp.
- Sunfish · Bluegill · Crappie · Yellow Perch
Statewide combined bag limit: 20 sunfish, 10 crappies, 20 yellow perch (some lakes have reduced panfish limits to protect quality).
Always Verify with the Official Source
Fishing rules change between seasons, and some change mid-season. Before you fish Thein Lake, read the official Minnesota fishing regulations for the current limits, border-water exceptions, emergency closures, and 2026 season dates.
Official Minnesota fishing regulations →Frequently Asked Questions
Are there special fishing regulations on Thein Lake?
Minnesota sets lake-specific rules on some waters, and those rules are not listed here. Look up Thein Lake in the official Minnesota fishing regulations before you fish.
What is the walleye limit on Thein Lake?
Minnesota's statewide walleye limit is 6 fish, only 1 of them over 20 inches. Some Minnesota lakes carry a tighter walleye limit, so check the official Minnesota fishing regulations for Thein Lake.
When does the Minnesota fishing season open at Thein Lake?
Minnesota's general fishing opener for walleye, northern pike, and lake trout falls on the Saturday closest to May 12 each year — for 2026, that's typically the second weekend of May. Bass season opens later (late May for catch-and-release, mid-June for harvest in many lakes). Panfish are open year-round on most waters.
Do I need a fishing license at Thein Lake?
Yes, most adult anglers need a current Minnesota fishing license to fish Thein Lake. Age thresholds and stamp requirements vary by state. Buy through the official Minnesota licensing system or an authorized retailer.
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Statewide limits are a summary of the Minnesota regulations, which are the authoritative version. This site is not affiliated with any government agency. Always confirm the rules with the official Minnesota fishing regulations before fishing.