Colorado Game Management Unit 231
Game Management Units (elk/deer/pronghorn/moose/bear/lion) · Colorado Parks and Wildlife
Unit boundary
Simplified for the web from the public layer of Colorado Parks and Wildlife (source and terms). Units change with each season's regulations, and the legal boundary description in the regulations is what counts.
Legal shooting light this week
Colorado's general big-game hours: 30 minutes before sunrise to 30 minutes after sunset, worked out for the middle of the unit (40.141, -107.103) on local time. Times can be a minute or two off at the unit's edges.
| Day | Shooting light starts (MST) | Ends | Sunrise | Sunset |
|---|---|---|---|---|
| 6:07 AM | 5:35 PM | 6:36 AM | 5:05 PM | |
| 6:08 AM | 5:33 PM | 6:37 AM | 5:03 PM | |
| 6:09 AM | 5:32 PM | 6:38 AM | 5:02 PM | |
| 6:10 AM | 5:31 PM | 6:39 AM | 5:01 PM | |
| 6:12 AM | 5:30 PM | 6:41 AM | 5:00 PM | |
| 6:13 AM | 5:29 PM | 6:42 AM | 4:59 PM | |
| 6:14 AM | 5:28 PM | 6:43 AM | 4:58 PM |
Turkey, waterfowl, some public lands and opening days have their own hours. Always check the Colorado regulations for your species (where this rule comes from).
Maps that cover this unit
See all maps in this area ›
Sand Point, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Blanco Ranger District Motor Vehicle Use Map (MVUM) — White River National Forest (2026)
Forest Service Maps (public domain) · White River National Forest
Public domain

Yampa Ranger District Motor Vehicle Use Map (MVUM) — Medicine Bow-Routt National Forests & Thunder Basin National Grassland (2019)
Forest Service Maps (public domain) · Medicine Bow-Routt National Forests & Thunder Basin National Grassland
Public domain

Hahns Peak/Bears Ears Ranger District Motor Vehicle Use Map (MVUM) — Medicine Bow-Routt National Forests & Thunder Basin National Grassland (2021)
Forest Service Maps (public domain) · Medicine Bow-Routt National Forests & Thunder Basin National Grassland
Public domain

Orno Peak, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Dunckley Pass, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Devils Causeway, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Yampa, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Trapper, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Parks Ranger District Motor Vehicle Use Map (MVUM) — Medicine Bow-Routt National Forests & Thunder Basin National Grassland (2018)
Forest Service Maps (public domain) · Medicine Bow-Routt National Forests & Thunder Basin National Grassland
Public domain

Eagle-Holy Cross Ranger District Motor Vehicle Use Map (MVUM) — White River National Forest (2026)
Forest Service Maps (public domain) · White River National Forest
Public domain

Rattlesnake Butte, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Dunckley, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Pagoda Peak, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Ripple Creek, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Oak Creek, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Dome Peak, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Trappers Lake, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Hayden Gulch, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Burns North, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain

Big Marvine Peak, CO — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · Colorado
Public domain