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J Lake is a public lake in Blaine County, Montana, managed by Montana Fish, Wildlife & Parks. It is public water managed for fishing by the Montana Fish, Wildlife & Parks.
Lakes and reservoirs across the Rocky Mountain region typically hold rainbow, brown, cutthroat and brook trout, with kokanee salmon and lake trout present in many of the larger reservoirs -- species commonly documented across the region's public waters by state wildlife agencies.
J Lake covers about 105 acres in the Northeast Montana region. The nearest other mapped waters on PiscaMaps are Bigby Lake and South Fork Peoples Creek.
Anyone 12 or older needs a Montana fishing licence — the resident annual (Conservation License + fishing) is about $34, the non-resident annual about $150, with non-resident 2-day (~$35) and 10-day (~$75) licences also sold. A separate Aquatic Invasive Species (AIS) prevention pass fee applies to residents and non-residents alike. Montana residents 62 and older, and legally blind residents, pay a reduced fee. Buy from FWP at fwp.mt.gov. A Montana fishing licence covers this reservoir.
Every water carries species, bank & boat access, current regulations and live water conditions — and members get Swim Mapper, Catch Logger and Trip Planner. It's the only US map with a dedicated carp-water layer.
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