Boulder River at Big Timber MT
USGS 06200000 · Montana · reports discharge (live), gauge height
Reading Boulder River at Big Timber MT…
Back to the search
USGS 06200000 · Montana · reports discharge (live), gauge height
What the agencies suggest
Approach the stream carefully and with a low profileIowa Department of Natural Resources
Fishing upstream will usually spook fewer fish than working downstreamIowa Department of Natural Resources
Deep pools and undercut banks provide refuge during sunny days and low waterMinnesota Department of Natural Resources
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 8:00 PM MST · provisional USGS data
Much below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 167 readings from Oct 29, 9:15 PM MDT to Nov 5, 8:00 PM MST; ranging 116 to 149 ft³/s; latest 125 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 8:00 PM MST | 125 | 1.24 | 170–240 |
| Nov 5, 6:00 PM MST | 123 | 1.23 | 170–240 |
| Nov 5, 5:00 PM MST | 123 | 1.23 | 170–240 |
| Nov 5, 3:00 PM MST | 120 | 1.22 | 170–240 |
| Nov 5, 2:00 PM MST | 118 | 1.21 | 170–240 |
| Nov 5, 1:00 PM MST | 118 | 1.21 | 170–240 |
| Nov 5, 12:00 PM MST | 120 | 1.22 | 170–240 |
| Nov 5, 11:00 AM MST | 120 | 1.22 | 170–240 |
| Nov 5, 10:00 AM MST | 123 | 1.23 | 170–240 |
| Nov 5, 9:00 AM MST | 125 | 1.24 | 170–240 |
| Nov 5, 8:00 AM MST | 125 | 1.24 | 170–240 |
| Nov 5, 7:00 AM MST | 127 | 1.25 | 170–240 |
| Nov 5, 6:00 AM MST | 127 | 1.25 | 170–240 |
| Nov 5, 5:00 AM MST | 130 | 1.26 | 170–240 |
| Nov 5, 4:00 AM MST | 127 | 1.25 | 170–240 |
| Nov 5, 3:00 AM MST | 130 | 1.26 | 170–240 |
| Nov 5, 2:00 AM MST | 130 | 1.26 | 170–240 |
| Nov 5, 1:00 AM MST | 127 | 1.25 | 170–240 |
| Nov 5, 12:00 AM MST | 130 | 1.26 | 170–240 |
| Nov 4, 11:00 PM MST | 130 | 1.26 | 169–249 |
| Nov 4, 10:00 PM MST | 127 | 1.25 | 169–249 |
| Nov 4, 9:00 PM MST | 132 | 1.27 | 169–249 |
| Nov 4, 8:00 PM MST | 130 | 1.26 | 169–249 |
| Nov 4, 7:00 PM MST | 130 | 1.26 | 169–249 |
| Nov 4, 6:00 PM MST | 127 | 1.25 | 169–249 |
| Nov 4, 5:00 PM MST | 125 | 1.24 | 169–249 |
| Nov 4, 4:00 PM MST | 127 | 1.25 | 169–249 |
| Nov 4, 3:00 PM MST | 123 | 1.23 | 169–249 |
| Nov 4, 2:00 PM MST | 125 | 1.24 | 169–249 |
| Nov 4, 1:00 PM MST | 123 | 1.23 | 169–249 |
| Nov 4, 12:00 PM MST | 125 | 1.24 | 169–249 |
| Nov 4, 11:00 AM MST | 123 | 1.23 | 169–249 |
| Nov 4, 10:00 AM MST | 125 | 1.24 | 169–249 |
| Nov 4, 9:00 AM MST | 125 | 1.24 | 169–249 |
| Nov 4, 8:00 AM MST | 127 | 1.25 | 169–249 |
| Nov 4, 7:00 AM MST | 125 | 1.24 | 169–249 |
| Nov 4, 6:00 AM MST | 127 | 1.25 | 169–249 |
| Nov 4, 5:00 AM MST | 130 | 1.26 | 169–249 |
| Nov 4, 4:00 AM MST | 130 | 1.26 | 169–249 |
| Nov 4, 3:00 AM MST | 132 | 1.27 | 169–249 |
| Nov 4, 2:00 AM MST | 132 | 1.27 | 169–249 |
| Nov 4, 1:00 AM MST | 132 | 1.27 | 169–249 |
| Nov 4, 12:00 AM MST | 132 | 1.27 | 169–249 |
| Nov 3, 11:00 PM MST | 132 | 1.27 | 162–252 |
| Nov 3, 10:00 PM MST | 132 | 1.27 | 162–252 |
| Nov 3, 9:00 PM MST | 134 | 1.28 | 162–252 |
| Nov 3, 8:00 PM MST | 137 | 1.29 | 162–252 |
| Nov 3, 7:00 PM MST | 134 | 1.28 | 162–252 |
| Nov 3, 6:00 PM MST | 134 | 1.28 | 162–252 |
| Nov 3, 5:00 PM MST | 137 | 1.29 | 162–252 |
| Nov 3, 4:00 PM MST | 137 | 1.29 | 162–252 |
| Nov 3, 3:00 PM MST | 134 | 1.28 | 162–252 |
| Nov 3, 2:00 PM MST | 137 | 1.29 | 162–252 |
| Nov 3, 1:00 PM MST | 139 | 1.3 | 162–252 |
| Nov 3, 12:00 PM MST | 137 | 1.29 | 162–252 |
| Nov 3, 11:00 AM MST | 139 | 1.3 | 162–252 |
| Nov 3, 10:00 AM MST | 139 | 1.3 | 162–252 |
| Nov 3, 9:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 8:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 7:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 6:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 5:00 AM MST | 144 | 1.32 | 162–252 |
| Nov 3, 4:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 3:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 2:00 AM MST | 144 | 1.32 | 162–252 |
| Nov 3, 1:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 3, 12:00 AM MST | 142 | 1.31 | 162–252 |
| Nov 2, 11:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 10:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 9:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 8:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 7:00 PM MST | 147 | 1.33 | 160–250 |
| Nov 2, 6:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 5:00 PM MST | 147 | 1.33 | 160–250 |
| Nov 2, 4:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 3:00 PM MST | 144 | 1.32 | 160–250 |
| Nov 2, 2:00 PM MST | 149 | 1.34 | 160–250 |
| Nov 2, 1:00 PM MST | 147 | 1.33 | 160–250 |
| Nov 2, 12:00 PM MST | 147 | 1.33 | 160–250 |
| Nov 2, 11:00 AM MST | 147 | 1.33 | 160–250 |
| Nov 2, 10:00 AM MST | 149 | 1.34 | 160–250 |
| Nov 2, 9:00 AM MST | 149 | 1.34 | 160–250 |
| Nov 2, 8:00 AM MST | 149 | 1.34 | 160–250 |
| Nov 2, 7:00 AM MST | 147 | 1.33 | 160–250 |
| Nov 2, 6:00 AM MST | 147 | 1.33 | 160–250 |
| Nov 2, 5:00 AM MST | 144 | 1.32 | 160–250 |
| Nov 2, 4:00 AM MST | 147 | 1.33 | 160–250 |
| Nov 2, 3:00 AM MST | 144 | 1.32 | 160–250 |
| Nov 2, 2:00 AM MST | 144 | 1.32 | 160–250 |
| Nov 2, 1:00 AM MST | 142 | 1.31 | 160–250 |
| Nov 2, 12:00 AM MST | 142 | 1.31 | 160–250 |
| Nov 1, 11:00 PM MST | 144 | 1.32 | 166–248 |
| Nov 1, 10:00 PM MST | 139 | 1.3 | 166–248 |
| Nov 1, 9:00 PM MST | 139 | 1.3 | 166–248 |
| Nov 1, 8:00 PM MST | 137 | 1.29 | 166–248 |
| Nov 1, 7:00 PM MST | 137 | 1.29 | 166–248 |
| Nov 1, 6:00 PM MST | 132 | 1.27 | 166–248 |
| Nov 1, 5:00 PM MST | 130 | 1.26 | 166–248 |
| Nov 1, 4:00 PM MST | 127 | 1.25 | 166–248 |
| Nov 1, 3:00 PM MST | 125 | 1.24 | 166–248 |
| Nov 1, 2:00 PM MST | 123 | 1.23 | 166–248 |
| Nov 1, 1:00 PM MST | 125 | 1.24 | 166–248 |
| Nov 1, 12:00 PM MST | 125 | 1.24 | 166–248 |
| Nov 1, 11:00 AM MST | 123 | 1.23 | 166–248 |
| Nov 1, 10:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 9:00 AM MST | 123 | 1.23 | 166–248 |
| Nov 1, 8:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 7:00 AM MST | 123 | 1.23 | 166–248 |
| Nov 1, 6:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 5:00 AM MST | 123 | 1.23 | 166–248 |
| Nov 1, 4:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 3:00 AM MST | 123 | 1.23 | 166–248 |
| Nov 1, 2:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 1:00 AM MST | 125 | 1.24 | 166–248 |
| Nov 1, 1:00 AM MDT | 125 | 1.24 | 166–248 |
| Nov 1, 12:00 AM MDT | 123 | 1.23 | 166–248 |
| Oct 31, 11:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 10:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 9:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 8:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 7:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 6:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 5:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 4:00 PM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 3:00 PM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 2:00 PM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 1:00 PM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 12:00 PM MDT | 127 | 1.25 | 169–254 |
| Oct 31, 11:00 AM MDT | 127 | 1.25 | 169–254 |
| Oct 31, 10:00 AM MDT | 127 | 1.25 | 169–254 |
| Oct 31, 9:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 8:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 7:00 AM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 6:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 5:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 4:00 AM MDT | 123 | 1.23 | 169–254 |
| Oct 31, 3:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 2:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 1:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 31, 12:00 AM MDT | 125 | 1.24 | 169–254 |
| Oct 30, 11:00 PM MDT | 125 | 1.24 | 165–246 |
| Oct 30, 10:00 PM MDT | 125 | 1.24 | 165–246 |
| Oct 30, 9:00 PM MDT | 123 | 1.23 | 165–246 |
| Oct 30, 8:00 PM MDT | 123 | 1.23 | 165–246 |
| Oct 30, 7:00 PM MDT | 123 | 1.23 | 165–246 |
| Oct 30, 6:00 PM MDT | 125 | 1.24 | 165–246 |
| Oct 30, 5:00 PM MDT | 123 | 1.23 | 165–246 |
| Oct 30, 4:00 PM MDT | 123 | 1.23 | 165–246 |
| Oct 30, 3:00 PM MDT | 120 | 1.22 | 165–246 |
| Oct 30, 2:00 PM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 1:00 PM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 12:00 PM MDT | 116 | 1.2 | 165–246 |
| Oct 30, 11:00 AM MDT | 116 | 1.2 | 165–246 |
| Oct 30, 10:00 AM MDT | 116 | 1.2 | 165–246 |
| Oct 30, 9:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 8:00 AM MDT | 116 | 1.2 | 165–246 |
| Oct 30, 7:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 6:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 5:00 AM MDT | 116 | 1.2 | 165–246 |
| Oct 30, 4:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 3:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 30, 2:00 AM MDT | 120 | 1.22 | 165–246 |
| Oct 30, 1:00 AM MDT | 120 | 1.22 | 165–246 |
| Oct 30, 12:00 AM MDT | 118 | 1.21 | 165–246 |
| Oct 29, 11:00 PM MDT | 120 | 1.22 | 169–251 |
| Oct 29, 10:00 PM MDT | 118 | 1.21 | 169–251 |
| Oct 29, 9:15 PM MDT | 120 | 1.22 | 169–251 |
Map of USGS gauge 06200000 and the river around it
Where Boulder River at Big Timber MT sits and our water's map point.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Montana FWP uses are 66°F, 68°F and 73°F.
Species the agency lists for Boulder River: Brook Trout, Brown Trout, Longnose Dace, Longnose Sucker, Mottled Sculpin, Mountain Sucker, Mountain Whitefish, Rainbow Trout, Yellowstone Cutthroat Trout.
Source: FISHMT :: Waterbody Details (Montana Fish, Wildlife & Parks).
Normal for Nov 5: 170–240 ft³/s (middle half of 77 years of record). Now: 125 ft³/s, much below normal.
Much below normal for this date. 125 ft³/s is below the 10th percentile of daily mean flow for Nov 5 at this gauge over 77 years of record (1948–2025): 10th 147, 25th 170, median 197, 75th 240, 90th 284 ft³/s.
Daily means on record for Nov 5: lowest 90 ft³/s, highest 433 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (−3.8% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
NWS observation not current. NWS has no current observation at this gauge, so no flood category is shown.
Forecasts are issued as needed during times of high water, but are not routinely available.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:07 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.