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| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 1989-10-01 | 2025-11-06 | |
| Daily Data | |||
| Temperature, water, degrees Celsius | 1979-07-31 | 2025-11-05 | 8033 |
| Discharge, cubic feet per second | 1928-10-01 | 2025-12-14 | 35504 |
| Oxidation reduction potential, reference electrode not specified, millivolts | 2024-04-24 | 2025-11-05 | 1314 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2024-04-24 | 2025-11-05 | 1314 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2024-04-24 | 2025-11-05 | 1311 |
| pH, water, unfiltered, field, standard units | 2024-04-24 | 2025-11-05 | 1311 |
| Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE) | 2024-04-24 | 2025-11-05 | 1305 |
| Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU) | 2024-04-23 | 2025-11-06 | 1218 |
| Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU) | 2024-04-24 | 2025-11-05 | 1296 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2024-04-24 | 2025-11-05 | 1311 |
| Suspended sediment discharge, short tons per day | 1948-04-28 | 1969-06-29 | 6892 |
| Daily Statistics | |||
| Temperature, water, degrees Celsius | 1979-08-01 | 2025-05-13 | 2653 |
| Discharge, cubic feet per second | 1928-10-01 | 2025-04-13 | 35259 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2024-04-24 | 2024-11-13 | 204 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2024-04-24 | 2025-05-13 | 264 |
| Suspended sediment discharge, short tons per day | 1948-04-28 | 1969-06-29 | 6892 |
| Monthly Statistics | |||
| Temperature, water, degrees Celsius | 1979-08 | 2025-05 | |
| Discharge, cubic feet per second | 1928-10 | 2025-04 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2024-04 | 2024-11 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2024-04 | 2025-05 | |
| Suspended sediment discharge, short tons per day | 1948-04 | 1969-06 | |
| Annual Statistics | |||
| Temperature, water, degrees Celsius | 1979 | 2025 | |
| Discharge, cubic feet per second | 1929 | 2025 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2024 | 2025 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2024 | 2025 | |
| Suspended sediment discharge, short tons per day | 1948 | 1969 | |
| Peak streamflow | 1929-06-04 | 2024-06-27 | 96 |
| Field measurements | 1975-06-09 | 2025-11-19 | 306 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1961-09-07 | 2013-07-08 | 215 |
| Water-Year Summary | 2006 | 2024 | 19 |
| Revisions | Loading... | ||
U.S. Department of the Interior |
U.S. Geological Survey
Title: NWIS Site Information for USA: Site Inventory
URL:
Page Contact Information: Montana Water Data Support Team
Page Last Modified: 2025-12-15 22:58:22 EST
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