Gardner River near Mammoth, YNP
USGS 06191000 · Montana · reports discharge (live), gauge height
Reading Gardner River near Mammoth, YNP…
Back to the search
USGS 06191000 · Montana · reports discharge (live), gauge height
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 5:30 PM MST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 6:30 PM MDT to Nov 5, 5:30 PM MST; ranging 104 to 130 ft³/s; latest 109 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, 5:30 PM MST | 109 | 1.82 | 101–127 |
| Nov 5, 4:30 PM MST | 111 | 1.83 | 101–127 |
| Nov 5, 3:30 PM MST | 111 | 1.83 | 101–127 |
| Nov 5, 2:30 PM MST | 109 | 1.82 | 101–127 |
| Nov 5, 1:30 PM MST | 106 | 1.81 | 101–127 |
| Nov 5, 12:30 PM MST | 106 | 1.81 | 101–127 |
| Nov 5, 11:30 AM MST | 109 | 1.82 | 101–127 |
| Nov 5, 10:30 AM MST | 109 | 1.82 | 101–127 |
| Nov 5, 9:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 8:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 7:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 6:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 5:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 4:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 3:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 2:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 1:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 5, 12:30 AM MST | 111 | 1.83 | 101–127 |
| Nov 4, 11:30 PM MST | 111 | 1.83 | 104–128 |
| Nov 4, 10:30 PM MST | 111 | 1.83 | 104–128 |
| Nov 4, 9:30 PM MST | 109 | 1.82 | 104–128 |
| Nov 4, 8:30 PM MST | 109 | 1.82 | 104–128 |
| Nov 4, 7:30 PM MST | 109 | 1.82 | 104–128 |
| Nov 4, 6:30 PM MST | 111 | 1.83 | 104–128 |
| Nov 4, 5:30 PM MST | 111 | 1.83 | 104–128 |
| Nov 4, 4:30 PM MST | 116 | 1.85 | 104–128 |
| Nov 4, 3:30 PM MST | 116 | 1.85 | 104–128 |
| Nov 4, 2:30 PM MST | 111 | 1.83 | 104–128 |
| Nov 4, 1:30 PM MST | 106 | 1.81 | 104–128 |
| Nov 4, 12:30 PM MST | 104 | 1.8 | 104–128 |
| Nov 4, 11:30 AM MST | 106 | 1.81 | 104–128 |
| Nov 4, 10:30 AM MST | 109 | 1.82 | 104–128 |
| Nov 4, 9:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 4, 8:30 AM MST | 114 | 1.84 | 104–128 |
| Nov 4, 7:30 AM MST | 114 | 1.84 | 104–128 |
| Nov 4, 6:30 AM MST | 114 | 1.84 | 104–128 |
| Nov 4, 5:30 AM MST | 114 | 1.84 | 104–128 |
| Nov 4, 4:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 4, 3:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 4, 2:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 4, 1:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 4, 12:30 AM MST | 111 | 1.83 | 104–128 |
| Nov 3, 11:30 PM MST | 111 | 1.83 | 102–127 |
| Nov 3, 10:30 PM MST | 111 | 1.83 | 102–127 |
| Nov 3, 9:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 8:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 7:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 6:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 5:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 4:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 3:30 PM MST | 114 | 1.84 | 102–127 |
| Nov 3, 2:30 PM MST | 116 | 1.85 | 102–127 |
| Nov 3, 1:30 PM MST | 116 | 1.85 | 102–127 |
| Nov 3, 12:30 PM MST | 116 | 1.85 | 102–127 |
| Nov 3, 11:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 10:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 9:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 8:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 7:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 6:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 5:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 4:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 3:30 AM MST | 116 | 1.85 | 102–127 |
| Nov 3, 2:30 AM MST | 119 | 1.86 | 102–127 |
| Nov 3, 1:30 AM MST | 119 | 1.86 | 102–127 |
| Nov 3, 12:30 AM MST | 119 | 1.86 | 102–127 |
| Nov 2, 11:30 PM MST | 119 | 1.86 | 103–126 |
| Nov 2, 10:30 PM MST | 119 | 1.86 | 103–126 |
| Nov 2, 9:30 PM MST | 119 | 1.86 | 103–126 |
| Nov 2, 8:30 PM MST | 119 | 1.86 | 103–126 |
| Nov 2, 7:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 6:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 5:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 4:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 3:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 2:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 1:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 12:30 PM MST | 122 | 1.87 | 103–126 |
| Nov 2, 11:30 AM MST | 124 | 1.88 | 103–126 |
| Nov 2, 10:30 AM MST | 124 | 1.88 | 103–126 |
| Nov 2, 9:30 AM MST | 127 | 1.89 | 103–126 |
| Nov 2, 8:30 AM MST | 127 | 1.89 | 103–126 |
| Nov 2, 7:30 AM MST | 127 | 1.89 | 103–126 |
| Nov 2, 6:30 AM MST | 127 | 1.89 | 103–126 |
| Nov 2, 5:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 2, 4:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 2, 3:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 2, 2:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 2, 1:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 2, 12:30 AM MST | 130 | 1.9 | 103–126 |
| Nov 1, 11:30 PM MST | 130 | 1.9 | 101–128 |
| Nov 1, 10:30 PM MST | 130 | 1.9 | 101–128 |
| Nov 1, 9:30 PM MST | 127 | 1.89 | 101–128 |
| Nov 1, 8:30 PM MST | 127 | 1.89 | 101–128 |
| Nov 1, 7:30 PM MST | 127 | 1.89 | 101–128 |
| Nov 1, 6:30 PM MST | 124 | 1.88 | 101–128 |
| Nov 1, 5:30 PM MST | 124 | 1.88 | 101–128 |
| Nov 1, 4:30 PM MST | 122 | 1.87 | 101–128 |
| Nov 1, 3:30 PM MST | 122 | 1.87 | 101–128 |
| Nov 1, 2:30 PM MST | 122 | 1.87 | 101–128 |
| Nov 1, 1:30 PM MST | 119 | 1.86 | 101–128 |
| Nov 1, 12:30 PM MST | 119 | 1.86 | 101–128 |
| Nov 1, 11:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 10:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 9:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 8:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 7:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 6:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 5:30 AM MST | 116 | 1.85 | 101–128 |
| Nov 1, 4:30 AM MST | 114 | 1.84 | 101–128 |
| Nov 1, 3:30 AM MST | 114 | 1.84 | 101–128 |
| Nov 1, 2:30 AM MST | 114 | 1.84 | 101–128 |
| Nov 1, 1:30 AM MST | 114 | 1.84 | 101–128 |
| Nov 1, 1:30 AM MDT | 114 | 1.84 | 101–128 |
| Nov 1, 12:30 AM MDT | 111 | 1.83 | 101–128 |
| Oct 31, 11:30 PM MDT | 114 | 1.84 | 103–129 |
| Oct 31, 10:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 9:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 8:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 7:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 6:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 5:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 4:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 3:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 2:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 1:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 12:30 PM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 11:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 10:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 9:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 8:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 7:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 6:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 5:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 4:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 3:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 2:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 1:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 31, 12:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 11:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 10:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 9:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 8:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 7:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 6:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 5:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 4:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 3:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 2:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 1:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 12:30 PM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 11:30 AM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 10:30 AM MDT | 109 | 1.82 | 103–129 |
| Oct 30, 9:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 8:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 7:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 6:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 5:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 4:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 3:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 2:30 AM MDT | 111 | 1.83 | 103–129 |
| Oct 30, 1:30 AM MDT | 114 | 1.84 | 103–129 |
| Oct 30, 12:30 AM MDT | 114 | 1.84 | 103–129 |
| Oct 29, 11:30 PM MDT | 114 | 1.84 | 104–131 |
| Oct 29, 10:30 PM MDT | 114 | 1.84 | 104–131 |
| Oct 29, 9:30 PM MDT | 114 | 1.84 | 104–131 |
| Oct 29, 8:30 PM MDT | 116 | 1.85 | 104–131 |
| Oct 29, 7:30 PM MDT | 116 | 1.85 | 104–131 |
| Oct 29, 6:30 PM MDT | 116 | 1.85 | 104–131 |
Map of USGS gauge 06191000 and the river around it
Where Gardner River near Mammoth, YNP 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.
This gauge is on our page for Gardner River, but no agency page we read lists its species.
Normal for Nov 5: 101–127 ft³/s (middle half of 76 years of record). Now: 109 ft³/s, normal.
Normal for this date. 109 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 76 years of record (1939–2026): 10th 93, 25th 101, median 114, 75th 127, 90th 142 ft³/s.
Daily means on record for Nov 5: lowest 77.1 ft³/s, highest 166 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 (−1.8% 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.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)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.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 1.82 ft stage, 142 ft³/s at Nov 5, 5:45 PM MST (NWS gauge GDRM8; its stage datum can differ from the USGS gauge height).
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 6:24 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.