Flathead rivers are still on the rise with large woody debris moving in river channels. Current river conditions at flatheadrivers.org. Photo: below the confluence of the South and Middle Forks before Badrock Canyon.
Flathead River (mainstem) · Flathead Valley
Blankenship Bridge to Teakettle (Columbia Falls)
Starts at Blankenship Bridge where the North and Middle Forks meet to form the mainstem Flathead, then runs ~10 miles through the upper mainstem to the Teakettle FAS at Columbia Falls. Wide channel; Class I scenic float. The South Fork joins from the east about 5 miles below Blankenship at the eastern end of Bad Rock Canyon. House of Mystery (roughly mile 7, river-right near US-2) is an informal mid-section take-out option; pairs naturally with the next-downstream run (Teakettle → Old Steel Bridge) for a full mainstem day. Float traffic is light most weekdays, busier on warm summer weekends.
GO
Running well at 3,560 CFS.
Updated 1 hr ago · USGS 12363000 Flathead River at Columbia Falls MT
≈23rd percentile — running low for the date
1 thing on this page we haven't confirmed locally — know this river? Open to weigh in.
Everything below traces to a published source, but no local paddler has confirmed these yet. The same items carry a ⚑ flag where they appear on the page; a confirmation or correction from you clears them.
- 2,000–25,000 prime band is a forum default
The mainstem's prime range is a reasonable default from paddler-forum chatter — no American Whitewater page covers these flat-water reaches to calibrate against, so the badge is only as good as this guess. Paddler-forum chatter (v1 seed)
At what Columbia Falls flows does this float get unpleasant — too pushy up high, or gravel-bar dragging down low?
No. 01 · Today
What the river is doing today
↘Live flow and weather, straight off the gauge — updated every fifteen minutes.
FLOW USGS 12363000 ↗ Flathead River at Columbia Falls MT
3,560
steady · -40 over 24 h· gauge 3.78 ft
≈23rd percentile for the date — running low for the date · median ~4,070 cfs
Too low <1,400Low 1,400–2,000Prime 2,000–25,000High 25,000–37,500Too high >37,500
Zones are a community estimate — no agency publishes a flow window for this run. Today's flow sits in the band of the same color. Dashed forward lines: the NOAA NWPS short-range forecast ↗ on 7-day & 30-day, and the NWRFC ensemble outlook ↗ on Season.
ON THE WATER
Partly Sunny · Monday · NOAA forecast ↗
Water
48°F
Air high
62°F
Precip
2%
Wind
2mph NW
Sunrise
8:02AM
Sunset
6:43PM
No. 02 · Honest read
Is today the day?
↘A read for what's actually running — not a generic class description. Updated with every gauge tick.
Good day to go
Flow is sitting in the meaty middle of the best-at range — the band we call fat enough to float, lean enough to read.
At 3,560 CFS this is a friendly run for boaters with a few days of experience, or anyone going guided. Family-friendly for strong-swimmer kids. Bring throw bags, helmets, and dry bags.
- ✦Scout the crux. Eddy out above the marked rapid and look before you commit.
- ✦Two boats, minimum. Long runs with no road. You are your own rescue.
- ✦Helmet, throw bag, whistle on every paddler. Pin kit split between boats.
- ✦Dress for the swim, not the float — dry layers waiting at the take-out.
- ✦Tell someone your plan and the time you expect to be off the water.
No. 03 · The run
Mile by mile
↘The upper mainstem — confluence-to-Columbia Falls. Wide, scenic, mostly Class I with strong steady current. Bad Rock Canyon scenery and the House of Mystery as a midway landmark; the South Fork joins about 5 miles below the put-in.
No named rapids are recorded for this run.
No. 04 · Getting there & back
How to get there. How to get back.
↘Put-in, take-out, and the shuttle between them. Confirm road conditions before a remote launch.
Put-in
Blankenship Bridge
48.4740, -114.1150Directions ↗
Notes
Just upstream of the bridge on river-left is the formal river access. County non-fee campground on opposite bank. WATCH the bridge pylons — wrap potential. Reachable from Highway 2 above Coram.
Take-out
Teakettle (Columbia Falls)
48.3670, -114.1810Directions ↗
Notes
FWP access below the Highway 2 bridge on river-right. Nice boat launch.
Also
House of Mystery
Shuttle
10 mi self-shuttle
≈ 22 min driveShuttle route ↗
Route
Spot a vehicle at the take-out, drive boats to the put-in, retrieve at the end of the day.
Source
Driving distance via the Mapbox Directions API; matches a standard road shuttle, not a back-road shortcut.
Permits
None
Season
May–October. Long, forgiving season on the mainstem.
Rules & regulationsvia Flathead Rivers Alliance ↗
- Personal flotation device. A USCG-approved PFD must be carried on board for every person. Anyone 12 or under must wear a PFD while the vessel is underway.
- Bear-resistant food storage. IGBC-approved bear-resistant food storage is required in the river corridor — this is grizzly country.
- Human-waste containment. Self-contained or solid human-waste containment is required on the Middle and North Forks (recommended on the South Fork).
- Fire management. Fire pans or fire blankets are required or strongly recommended; camp stoves are preferred over campfires.
- Aquatic-invasive-species inspection. An AIS inspection (NPS and Montana FWP) is required before launching anywhere in the basin.
No. 05 · Hazards on this run
What to watch for
↘Hazards we have on record for this run specifically. Universal river-safety practice — gear, group, emergencies — is on the disclaimer & safety page.
No standout hazards are flagged for this run — which is not the same as none. Woodmoves and channels shift; scout anything you can't read from upstream.
Corridor contactsvia Flathead Rivers Alliance ↗
- Emergencies. Dial 911. Cell coverage is limited throughout the corridor — plan to be self-reliant between accesses.
- Primary rescue. North Valley Search & Rescue covers all three forks of the Flathead.
- FWP warden. Tyler Melville (North Fork) · Ben Chappelow (Middle and South Forks)
- Nearest hospitals. Logan Health Whitefish and Logan Health Medical Center (Kalispell) are the primary regional facilities; serious trauma is flown to Kalispell or Missoula.
- Life-jacket loaner stations. Free loaner PFDs are available at the West Glacier and Glacier Rim access points, Memorial Day through Labor Day.
No. 06 · Before you head up the highway
Today's gear call
↘Tailored to today's water temperature and this run's difficulty. The full always-bring list is on the disclaimer & safety page.
Today-specific · 48°F water · class I
At 48°F, this gear is non-optional.
Drysuit, or 3 mm+ wetsuit with a paddling jacket.
Water is 48°F — hypothermia risk in a swim.
Neoprene gloves or pogies.
Hands quit fast at this temperature.
Throw bag per paddler; pin kit split between boats.
Self-rescue is the only rescue out here.
Dry clothes and a warm hat in a dry bag.
Hypothermia prevention after a swim.
No. 07 · From the boats that ran it
What the last few boats said
↘Sorted by similarity to today's flow. Reports are the best signal we have for what a run feels like — leave one when you get home.
No trip reports on this run yet — be the first.The rapids you ran, the flow at the gauge, the line you took — that is the best signal there is.
No. 08 · From the group
From the group
↘Ranger's note ·Beta pulled from the Flathead Valley Paddling Society on Facebook — organized, attributed, and kept here so it doesn't vanish into the feed. The original conversations are at the bottom.
Safety
Late May 2026 (Flathead Rivers Alliance): the forks are still rising with large woody debris moving in the channels. Check current conditions at flatheadrivers.org before launching.
The original conversations
View the original thread →
Gauges & flow
- USGS 12363000 · Flathead River at Columbia Falls MTUpdates every 15 min