Reservoir · Colorado · United States · USGS NWIS
SILVER JACK RESERVOIR NEAR CIMARRON, CO
18.2% full
Capacity
16.68 hm³
Volume stored
3 hm³
Coordinates
38.233°N, 107.542°W
Last updated
2026-07-28
Current fill
18.2%vs 7 days ago
-0.4%losing
vs 1 year ago
-34.8%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — 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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.233, -107.542 · Open in Google Maps
About SILVER JACK RESERVOIR NEAR CIMARRON, CO
As of July 28, 2026, SILVER JACK RESERVOIR NEAR CIMARRON, CO is filled to 18.2% of its total capacity, holding roughly 3 hm³ of water out of a maximum 17 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts), and it is 34.8 points below its level on the same date a year earlier.
Across the readings we hold for SILVER JACK RESERVOIR NEAR CIMARRON, CO — 1449 data points between July 30, 2022 and July 28, 2026 — the level has ranged from a low of 3.5% (September 30, 2025) to a high of 98.3% (June 3, 2025). On average the reservoir is fullest around June and at its lowest around October.
It is operated by USGS primarily for multiple purposes. It lies within the Colorado basin at 38.233°N, 107.542°W.
Key facts
- Current fill level
- 18.2%
- Water stored
- 3 hm³
- Total capacity
- 17 hm³
- 7-day change
- ▼ 0.4 pts
- Year-on-year
- ▼ 34.8 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- USGS
- Coordinates
- 38.233°N, 107.542°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 18.2% | 3 |
| 27 Jul 2026 | 18.6% | 3 |
| 26 Jul 2026 | 19.1% | 3 |
| 25 Jul 2026 | 19.6% | 3 |
| 24 Jul 2026 | 20.0% | 3 |
| 23 Jul 2026 | 20.4% | 3 |
| 22 Jul 2026 | 20.6% | 3 |
| 21 Jul 2026 | 21.0% | 4 |
| 20 Jul 2026 | 21.5% | 4 |
| 19 Jul 2026 | 22.2% | 4 |
| 18 Jul 2026 | 22.8% | 4 |
| 17 Jul 2026 | 23.4% | 4 |
Frequently asked questions
What is the current water level of SILVER JACK RESERVOIR NEAR CIMARRON, CO?
As of July 28, 2026, SILVER JACK RESERVOIR NEAR CIMARRON, CO is at 18.2% of its capacity, holding approximately 3 hm³ of water, according to USGS NWIS data.
Is SILVER JACK RESERVOIR NEAR CIMARRON, CO reservoir full?
No. As of July 28, 2026, SILVER JACK RESERVOIR NEAR CIMARRON, CO is critically low at 18.2% of its capacity, so it is not full.
Is the water level at SILVER JACK RESERVOIR NEAR CIMARRON, CO rising or falling?
The level at SILVER JACK RESERVOIR NEAR CIMARRON, CO has been broadly stable over the latest week on record (-0.4 points).
How much water can SILVER JACK RESERVOIR NEAR CIMARRON, CO hold?
SILVER JACK RESERVOIR NEAR CIMARRON, CO has a total capacity of 17 hm³.
Where is SILVER JACK RESERVOIR NEAR CIMARRON, CO reservoir located?
SILVER JACK RESERVOIR NEAR CIMARRON, CO is located in Colorado, United States, within the Colorado basin (coordinates 38.233°N, 107.542°W).
What is SILVER JACK RESERVOIR NEAR CIMARRON, CO used for?
SILVER JACK RESERVOIR NEAR CIMARRON, CO is used primarily for multiple purposes, and is managed by USGS.