
Check which species have trophy potential in Washington Lake
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Washington Lake is a lake located in Custer County, Idaho, United States. It is most popular for fishing Brook trout.
Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Idaho can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching Brook trout as of April 13th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Salvelinus fontinalis, brookie, coaster, speckled trout
39.2 miles away
82.2 miles away
85.6 miles away
86.4 miles away
90.4 miles away
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96.3 miles away
101.6 miles away
101.7 miles away
105.0 miles away
111.3 miles away
117.0 miles away
127.7 miles away
132.4 miles away
134.3 miles away
134.6 miles away
138.4 miles away
141.5 miles away
195.8 miles away
201.7 miles away
207.4 miles away
211.1 miles away
211.7 miles away
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