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Big Hole River is a public river in Beaverhead County, Madison County, Silver Bow County and Deer Lodge County, Montana, managed by State of Montana (public / navigable water). You can fish it on a Montana fishing licence; bank access is at bridge crossings, MTFWP access points and public parks. Montana riverbeds are private property up to the ordinary high-water mark except on a few federally-declared-navigable reaches, so wading or bank fishing away from a public access point needs the landowner's permission. Public access confirmed via marquee water.
The Big Hole River — wild rainbow, brown and brook trout plus one of the last strongholds of fluvial Arctic grayling in the lower 48.
It runs roughly 98 miles through the Southwest Montana region. Anglers here mostly fish for rainbow trout, brown trout, westslope cutthroat trout, mountain whitefish. Live flow and gauge height come from the Big Hole River near Glen MT USGS station shown below. The nearest other mapped waters on PiscaMaps are Deno Creek and Adson Creek.
Species from PiscaMaps water-type profiles, MTFWP trout designations and hand research.
Night fishing: No statewide night-fishing closure in Montana, though many Blue Ribbon trout rivers have seasonal 'hoot owl' restrictions (afternoon/evening closures) during hot, low-water summer conditions to protect stressed trout — check current FWP drought restrictions before an evening trip.
Boats: Flathead Lake, Fort Peck Lake, Canyon Ferry and the other big reservoirs take full-size boats; most Blue Ribbon trout rivers (Madison, Big Hole, Beaverhead) are floated by drift boat, raft or canoe. An AIS watercraft inspection is mandatory for all trailered boats moving between waters.
Bank & bivvy camping: Camp at MTFWP Fishing Access Sites (many allow camping, some are day-use only — check the site listing), Montana state parks, and National Forest campgrounds along the trout rivers.
Tackle: Trout limits vary widely by water and are often catch-and-release or reduced-limit on the famous Blue Ribbon rivers; walleye/northern pike/bass limits on the reservoirs are more generous. Always check the current MTFWP fishing regulations for this specific water — Montana's regs are unusually water-specific.
Boat ramps: 6 mapped — Boat ramp, Boat ramp, Boat ramp, Put-in, Put-in, Boat ramp.
Camping: 5 sites mapped nearby — Glen Campground, Campsite, Divide Bridge Campground, Campsite, American Legion Memorial Park Campground.
Source: OpenStreetMap contributors.
Loading live flow & gauge height…
Live from USGS gauge 06026210 — Big Hole River near Glen MT. Full gauge data →
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 river under the state's stream access law, which grants the public the right to use rivers and streams for recreation up to the ordinary high-water mark on any water capable of recreational use, regardless of who owns the streambed — one of the most angler-friendly access laws in the country.
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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