Overview
Mason Lake Map
Fishing Regulations
Special Fishing regulations: This lake has special fishing regulations that differ from statewide or border water regulations for those species identified below and take precedence. Regulations listed below are currently in place. Visit the fishing regulations page for links to upcoming regulations for specific lakes.
Special Waterbody Regulations
- Catch and release fishing for largemouth and smallmouth bass is open year round unless otherwise noted. Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.
Special Species Regulations
- Paddlefish: Closed. No fishing allowed.
- Urban waters gamefish: This waterbody is not considered an urban water, Urban Waters Gamefish regulations do not apply.
- Shortnose gar: See Rough Fish.
- Rock, Yellow, and White Bass: Open all year: No minimum length limit and the daily bag limit is unlimited
- Smallmouth bass: See Largemouth and Smallmouth Bass.
- Largemouth bass: See Largemouth and Smallmouth Bass.
- Largemouth bass and smallmouth bass: May 3, 2025 to March 1, 2026: No minimum length, but largemouth bass and smallmouth bass from 14” to 18” may not be kept, and only 1 fish over 18 is allowed. The daily bag limit is 5
- Northern pike: May 3, 2025 to March 1, 2026: The minimum length limit is 32” and the daily bag limit is 1
- Muskellunge and hybrids: May 3, 2025 to December 31, 2025: The minimum length limit is 40” and the daily bag limit is 1
- Lake sturgeon: Closed. No fishing allowed.
- Cisco and whitefish: Open all year: No minimum length limit and the daily bag limit is 10
- Catfish: Open all year: See specific species regulations in this group
- Bullheads: Open all year: No minimum length limit and the daily bag limit is unlimited
- Walleye, Saugers, and Hybrids: May 3, 2025 to March 1, 2026: The minimum length limit is 15” and the daily bag limit is 3
- Panfish: Open all year: No minimum length limit and the daily bag limit is 25
- Rough fish: Open all year: No minimum length limit and the daily bag limit is unlimited
- Round goby: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
- Ruffe: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
- Shovelnose sturgeon: Closed. No fishing allowed.
- Trout and salmon: See Trout regulations layer.
- White perch: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
- Bluegill: See Panfish.
- Bowfin: See Rough Fish.
- Channel catfish: Open all year: No minimum length limit and the daily bag limit is 25, 25 in total, but only 24 if one flathead catfish is included
- Walleye: See Walleye, Sauger, and Hybrids.
- Crappies: See Panfish.
- Flathead catfish: May 3, 2025 to September 30, 2025: The minimum length is 30, but flathead catfish from 36” to 42” may not be kept.The daily bag limit is 1
- Hybrid, Striped, Yellow, and White Bass: See Rock, Yellow and White Bass.
- Longnose gar: See Rough Fish.
- Sauger and hybrids: See Walleye, Sauger, and Hybrids.
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Fish Species
Mason Lake Bluegill abundance
Average range for similar lakes
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.| Survey Year | Largest Fish (in) |
|---|---|
| 2021 | 9 |
| 2019 | 9 |
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Mason Lake Crappie abundance
Average range for similar lakes
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.| Survey Year | Largest Fish (in) |
|---|---|
| 2019 | 14 |
Mason Lake Largemouth bass abundance
Average range for similar lakes
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.| Survey Year | Largest Fish (in) |
|---|---|
| 2024 | 20 |
Mason Lake Northern pike abundance
Average range for similar lakes
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Mason Lake Pumpkinseed abundance
Average range for similar lakes
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
