Reservoir · Montana · United States · BOR RISE
Bighorn River and BIA Canal near St. Xavier
82.8% full
Capacity
3.55 hm³
Volume stored
3 hm³
Coordinates
45.317°N, 107.918°W
Last updated
2026-06-10
Current fill
82.8%vs 7 days ago
+9.6%gaining
vs 1 year ago
+4.2%year-over-year
7-day trend
↑rising
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 45.317, -107.918 · Open in Google Maps
About Bighorn River and BIA Canal near St. Xavier
As of June 10, 2026, Bighorn River and BIA Canal near St. Xavier is filled to 82.8% of its total capacity, holding roughly 3 hm³ of water out of a maximum 4 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 9.6 percentage points, and it is 4.2 points above its level on the same date a year earlier.
Across the readings we hold for Bighorn River and BIA Canal near St. Xavier — 1825 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 18.0% (September 13, 2023) to a high of 92.1% (July 28, 2021). On average the reservoir is fullest around July and at its lowest around November.
It is operated by BOR primarily for multiple purposes. It lies within the Montana basin at 45.317°N, 107.918°W.
Key facts
- Current fill level
- 82.8%
- Water stored
- 3 hm³
- Total capacity
- 4 hm³
- 7-day change
- ▲ 9.6 pts
- Year-on-year
- ▲ 4.2 pts
- Primary use
- Multipurpose
- River basin
- Montana
- Operator
- BOR
- Coordinates
- 45.317°N, 107.918°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 82.8% | 3 |
| 9 Jun 2026 | 73.2% | 3 |
| 8 Jun 2026 | 74.1% | 3 |
| 7 Jun 2026 | 79.2% | 3 |
| 6 Jun 2026 | 87.6% | 3 |
| 5 Jun 2026 | 85.6% | 3 |
| 4 Jun 2026 | 82.0% | 3 |
| 3 Jun 2026 | 78.6% | 3 |
| 2 Jun 2026 | 79.2% | 3 |
| 1 Jun 2026 | 77.2% | 3 |
| 31 May 2026 | 81.4% | 3 |
| 30 May 2026 | 79.2% | 3 |
Frequently asked questions
What is the current water level of Bighorn River and BIA Canal near St. Xavier?
As of June 10, 2026, Bighorn River and BIA Canal near St. Xavier is at 82.8% of its capacity, holding approximately 3 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Bighorn River and BIA Canal near St. Xavier reservoir full?
No. As of June 10, 2026, Bighorn River and BIA Canal near St. Xavier is high at 82.8% of its capacity, so it is not full.
Is the water level at Bighorn River and BIA Canal near St. Xavier rising or falling?
The level at Bighorn River and BIA Canal near St. Xavier is rising — it gained 9.6 percentage points over the latest week on record.
How much water can Bighorn River and BIA Canal near St. Xavier hold?
Bighorn River and BIA Canal near St. Xavier has a total capacity of 4 hm³.
Where is Bighorn River and BIA Canal near St. Xavier reservoir located?
Bighorn River and BIA Canal near St. Xavier is located in Montana, United States, within the Montana basin (coordinates 45.317°N, 107.918°W).
What is Bighorn River and BIA Canal near St. Xavier used for?
Bighorn River and BIA Canal near St. Xavier is used primarily for multiple purposes, and is managed by BOR.