Big Hole River reopens as Yellowstone country shifts toward fall
Montana FWP lifted the closure on the Big Hole River's Section 5, from the Tony Schoonen (Notch) fishing access to the confluence with the Beaverhead, after weekend rain improved flows; the upstream Section 1 closure stays in place. In Yellowstone country, FWP has scheduled an Oct. 1 public meeting in Livingston to discuss removing illegally introduced bass from Sacajawea Lagoon. Farther north on the Missouri drainage, FWP also flagged a freshwater jellyfish sighting near Canyon Ferry Reservoir, a seasonal oddity anglers working that water should expect to see but not worry about.
New to these readings? What water temp, tide, and moon phase mean for fishing →
What's next
Watch for FWP's statewide spawning-closure notices, which begin Oct. 1 on select rivers as cooling water pushes fall spawning into gear; check current regs before working any stretch near a spawning closure this week. Region 4's Smith and Sun rivers already came off hoot-owl restrictions in late August as water temperatures moderated, and that easing trend should hold as days keep shortening into fall.
Tonight's full moon favors low-light feeding windows, so dawn and dusk outings are worth prioritizing over midday this weekend. It's also Bear Aware Month statewide, worth factoring into wading and bank-access plans on Yellowstone and Missouri drainage water as bears feed heavily ahead of winter.
Context
Late September puts Yellowstone and Missouri-drainage rivers in a typical fall transition: summer irrigation draw-down eases, flows stabilize, and heat- or low-flow-driven closures like the one just lifted on the Big Hole normally clear out around this point in the calendar. Spawning-related river closures opening Oct. 1 are a standard seasonal fixture for the region rather than an early or late call this year. Overall, conditions read as on-schedule for the fall shift.
Synthesized from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Check local regulations before keeping fish. Never trust a single source for a trip decision.
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