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RIVERBETA · field sheet

West Glacier to House of Mystery

Middle Fork Flathead
ClassII+ (III)
Length11 mi
Gradient
On-water≈ 4 hrs
SeasonMay–October
FlowGO
USGS 12358500 · Middle Fork Flathead River near West Glacier MT
3,120cfs
falling 140 / 24h · gauge 3.39 ft · water 58°F
48th percentile — about normal for the date · median ~3,190 cfs
Prime range 1,500–12,000 cfs
Flow at put-in today: cfs
On the water
Slight Chance Showers And Thunderstorms · This Afternoon
Water58°F
Air91°F
Precip15%
Wind2 mph SE
Sunrise5:52 AM
Sunset9:34 PM

GO Running well at 3,120 CFS. · Conditions as of Jul 16, 2026, 1:45 PM. Printed snapshot generated Jul 16, 2026, 2:15 PM— conditions change, wood moves, levels swing. Verify the gauge and scout anything you can't read from upstream.

Mile by mile

  • 1RM 14.1Devil's ElbowIII The one named rapid on the upper portion of this float, a short way below the McDonald Creek confluence. Enter center-right and work right.
West Glacier to House of Mystery river map
Pput-in · West GlacierTtake-out · House of Mystery#numbered rapids — see mile by mile

Getting there & back

Put-in

West GlacierLarge cobble-bar take-out off River Bend Drive on river left. Higher-clearance vehicle recommended — passenger cars can bottom out on river cobbles. Heavy outfitter use; parking lot for trailers. Do not park on the beach. Private property adjoins — respect neighbors. Hand-carry craft can also exit upstream at the historic Belton Bridge via a short steep trail.

Take-out

House of MysteryInformal river-side access on the mainstem Flathead near the Montana Vortex and House of Mystery roadside attraction on US Hwy 2 (7800 US-2 E, Columbia Falls). Sits roughly midway between the Blankenship confluence and Teakettle; works as a shorter take-out for the Blankenship → Teakettle float or as the take-out for the longer West Glacier → House of Mystery combined Middle-Fork-plus-mainstem trip locals run. Not a formal FWP/USFS site — parking limited, exact river access is informal; verify on the ground.

Shuttle (take-out → put-in): 14.2 mi · ≈ 20 min

Rules & contacts

Trip log

Date
Party / boats
On the water
Off the water
Flow at launch
Shuttle / keys
Wood, hazards & notes

Spot wood or a changed rapid? Add it to the run page when you're back in coverage — riverbeta.app/middle-fork-flathead/west-glacier-to-house-of-mystery — the next crew is counting on you.