RIVERBETA · pocket sheet
Scotty Brown Bridge to Johnsrud Park
Blackfoot River · II-III · 31.6 mi · 15 ft/mi · ≈10 hrs · May–September
NO858 cfs
Mile by mile
- 1Bear Creek RapidsII · RM 36 — Class II on the FWP float map, just upstream of the Bear Creek Flats float-in campsite.
- 2Roundup RapidIII · RM 29.2 — At the Highway 200 bridge by the Roundup access — 'a fun rapid that ranges from a bit technical to rowdy wave trains depending on flow' (American Whitewater). Easily scouted from Highway 200.
- 3Thibodeau RapidII-III · RM 17 — About two miles below Whitaker Bridge — watch for the large rock right-center as the river drops (American Whitewater). Big Sky Fishing calls it the Blackfoot's best-known piece of whitewater with the safest route on the right; FWP's float map grades it Class II. Flow-dependent.
- 4The LedgeII · RM 12.8 — A surf wave a quarter mile above Johnsrud that comes in when spring water is up — parking directly above and across the road, popular for park-and-play laps (American Whitewater).
Field notes
P Scotty Brown BridgeT Johnsrud Parkshuttle 28.9 mi · ≈33 min
Last 7 days · USGS 12340000
USGS 12340000 · Conditions as of Aug 3, 2026, 4:30 AM · Areas Of Smoke, 73°F. Printed Aug 3, 2026, 5:52 AM— levels swing, wood moves. Verify the gauge and scout anything you can't read from upstream.