Lakes / Colorado / Morgan County / Rosener Reservoir
Rosener Reservoir, Colorado
36 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.05 degrees N, 103.88 degrees W - Morgan County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Rosener Reservoir Stacks Up
- Larger than 24% of the 778 lakes counted in Colorado.
- About 63 miles from Denver, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Baseline Reservoir | Morgan | 7.5 mi | 52 acres |
| Moore Reservoir Number 4 | Morgan | 7.8 mi | 35 acres |
| Pawnee Raw Water Reservoir | Morgan | 16 mi | 137 acres |
| Bijou Number 2 Reservoir | Morgan | 17 mi | 414 acres |
| Empire Reservoir | Weld | 21 mi | 2,486 acres |
| Noonen Reservoir | Arapahoe | 24 mi | 88 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Rosener Reservoir
How Big Is Rosener Reservoir?
Rosener Reservoir covers 36 acres in Morgan County, Colorado.
What Is the Largest Lake in Morgan County?
Jackson Reservoir is the largest lake in Morgan County, at 2,434 acres.
Largest Lakes in Colorado
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | John Martin Reservoir | Bent | 11,686 acres | - |
| 2 | Blue Mesa Reservoir | Gunnison | 8,944 acres | - |
| 3 | Lake Granby | Grand | 7,075 acres | - |
| 4 | Lake Meredith | Crowley | 5,539 acres | - |
| 5 | Adobe Creek Reservoir | Bent | 4,770 acres | - |
All 778 Colorado lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 126892325). Verified October 30, 2026.