Grey Bear to Otter Creek
Yellowstone River · 10.1 river miles · Springdale, Montana
At today's flow of 1,700 cfs, Grey Bear to Otter Creek is about 4h 21m of continuous drifting over 10.1 river miles.
Conditions right now
Typical float time by month
Typical flow is the median day for the month at the gauge that represents this stretch. Float times are continuous drifting at that flow. Flow by month has the full record.
| Month | Typical flow | Float time |
|---|---|---|
| January | 1,200 cfs | 4h 58m |
| February | 1,190 cfs | 4h 59m |
| March | 1,280 cfs | 4h 51m |
| April | 1,730 cfs | 4h 20m |
| May | 6,450 cfs | 2h 37m |
| June | 12,550 cfs | 2h 02m |
| July | 6,830 cfs | 2h 34m |
| August | 3,240 cfs | 3h 24m |
| September | 2,230 cfs | 3h 56m |
| October | 1,920 cfs | 4h 10m |
| November | 1,635 cfs | 4h 25m |
| December | 1,360 cfs | 4h 45m |
How long it takes at different flows
| Flow | Estimated drift time |
|---|---|
| 1,200 cfs | 4h 58m |
| 2,000 cfs | 4h 06m |
| 3,000 cfs | 3h 31m |
| 5,000 cfs | 2h 53m |
| 8,000 cfs | 2h 25m |
| 12,000 cfs | 2h 04m |
On this stretch
- Boulder River joins, river mile 103.6
- Flow read from USGS gauge 06192500, Yellowstone River near Livingston, MT
Access
Put-in
Grey Bear
Last access above the Boulder River confluence. Camping.
Take-out
Otter Creek
First access below the Boulder River confluence. Camping.
Measured along the NHDPlus flowline, not straight-line distance.
Shuttle
9.8 miles by road, about 17 minutes driving. The drive is 0.98x the river distance.
Gradient
This reach is close to typical for this river, which is why its drift time differs from another stretch of the same length.
Connecting stretches
Keep going downstream
- Otter Creek to Pelican 11.5 mi
- Otter Creek to Bratten 19.9 mi
Start further upstream
- Springdale to Grey Bear 9.4 mi
Floated this stretch? Tell us how long it took
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Sources
Flow from USGS stream gauges 06191500 (Corwin Springs) and 06192500 (near Livingston). River miles from USGS NHDPlus; wind from the National Weather Service; access facts from Montana Fish, Wildlife & Parks. Every source and how the estimate is made · Terms.