Erdman Lake Fishing Regulations
Mason County, Washington · 2026 size limits, bag limits, and seasons
Erdman Lake is a lake in Mason County, Washington. It has its own fishing regulations for 4 species, including Channel Catfish, Largemouth Bass, Smallmouth Bass, and Walleye. These rules replace Washington's statewide limits on this water.
Map of Erdman Lake
Fish with special rules on Erdman Lake
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Erdman Lake limits by species (2026)
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
 Channel Catfish | – | 10 | Year-round |
 Largemouth Bass1 over 17” may be retained. | 12" max | 10 | Year-round |
 Smallmouth BassOnly 1 over 14” may be retained. | – | 15 | Year-round |
 WalleyeOnly 1 over 22” may be retained. | – | 16 | Year-round |
– means no limit is listed for this water. Rules not shown here follow Washington's statewide regulations.
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Erdman Lake fishing: common questions
What fish have special regulations on Erdman Lake?
4 species have rules specific to Erdman Lake: Channel Catfish, Largemouth Bass, Smallmouth Bass, and Walleye.
What is the channel catfish limit on Erdman Lake?
No size limit is listed for Channel Catfish on Erdman Lake, and the daily bag limit is 10.
What is the largemouth bass limit on Erdman Lake?
Largemouth Bass have a maximum size of 12" on Erdman Lake, and the daily bag limit is 10.
What is the smallmouth bass limit on Erdman Lake?
No size limit is listed for Smallmouth Bass on Erdman Lake, and the daily bag limit is 15.
Do Washington statewide fishing rules apply on Erdman Lake?
Where Erdman Lake has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Washington's statewide regulations apply. Regulations are set by the Washington Department of Fish and Wildlife; confirm with the official 2026 regulations before keeping a fish.
Other Washington waters with special regulations
- Yakima River · Benton
- Columbia River
- Wind River · Skamania
- Drano Lake · Skamania
- Naselle River · Pacific
- Roosevelt Lake · Ferry/Grant/Lincoln/Okanogan/Stevens
- Cowlitz River · Cowlitz/Lewis
- Green River · Duwamish
- Grays River · Wahkiakum
- Nisqually River · Pierce/Thurston
- Nooksack River · Whatcom
- Humptulips River · Grays Harbor
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