Colorado GMU 83 Elk Hunting
Alamosa and Costilla counties, southeast Colorado · 1,252 sq mi
Based on the EASIEST unit-wide bull or either-sex hunt code available to adult Colorado residents in the 2026 primary draw — the lowest preference-point tier that drew reliably. Private-land-only and Ranching for Wildlife hunts are excluded because neither is a unit-wide public-land opportunity — NOT because the public cannot draw them. A private-land-only license requires the hunter's own permission to hunt private ground; a Ranching for Wildlife license is valid on the participating ranches enrolled in that program. They are separate systems. Other weapons, seasons and nonresident applicants can require substantially more points. The band is a floor, not a target: even the easiest qualifying hunt here sits in that range.
What hunting GMU 83 is like
GMU 83 covers 1,252 square miles across the San Isabel and Sangre de Cristo ranges in Alamosa and Costilla counties. The unit spans from 7,400 feet to 14,300 feet in elevation, with typical hunting occurring around 8,200 feet. The terrain is gentle and rolling overall, with 72 percent of the unit in gentle slopes, 21 percent moderate, and 7 percent steep. The landscape presents mixed sage, aspen, and conifer forest across a diverse elevation gradient, moving from lower valleys into high mountain country.
Hunting here faces a fundamental constraint: approximately 0.9 percent of the unit—roughly 11 square miles—is open to public hunting. This ground consists of BLM land and State Wildlife Areas. The remaining 99 percent is either private (97 percent), unclassified in ownership (1.6 percent), or held in trust (0.3 percent, huntable only where CPW has enrolled it). The sparsity of public ground means legal access and routing are the primary limiting factors, regardless of terrain walkability.
Elk distribution shifts as the season progresses. Winter Range covers 60 percent of the unit, with Winter Concentration marking 23 percent—ground where elk cluster when cold weather drives them downslope. Summer Range is mapped across 41 percent of the unit, with Summer Concentration at 10 percent. A Resident Population layer covers 8 percent, indicating year-round use in specific areas, though elk redistribute seasonally through Migration Corridors (8 percent). As temperatures drop from September highs around 73 degrees Fahrenheit to November highs around 49 degrees Fahrenheit, and snowfall increases from negligible amounts in September to 3.7 inches monthly by November, hunters should expect elk to shift toward lower-elevation winter ground, though the timing and extent of movement vary with weather.
The unit offers six seasons: Archery (September 2–30, either-sex), Muzzleloader (September 12–20, either-sex or antlerless), four Rifle seasons (1st Rifle October 14–18, 2nd Rifle October 24–November 1, 3rd Rifle November 7–15, 4th Rifle November 18–22, all either-sex except 4th Rifle which includes antlerless). Archery and Muzzleloader both fall inside the rut: Archery spans Rut Onset and the Primary Rut, and Muzzleloader sits entirely within the Primary Rut. Rifle seasons span the post-rut period through the early migration window. Draw difficulty for the easiest unit-wide bull or either-sex code is Easy, often at zero preference points for adult Colorado residents, though other weapons, seasons, and nonresident applicants may require substantially more. Extreme hunter pressure means that despite favorable draw odds, the limited public ground concentrates effort on a small footprint.
Terrain & elevation
- Elevation
- 7,400–14,300 ft, typically around 8,200 ft
- Steepness
- Gentle — mean slope 7.3°
- Slope breakdown
- 72% gentle · 21% moderate · 7% steep · 0% rugged
- Ground you can count on
- ~11 sq mi, plus ~4 sq mi of State Trust Land where access depends on enrollment
Land & access
About <1% of GMU 83 is public land a hunter can count on — BLM and State Wildlife Areas.
- BLM<1%
- State Wildlife Area<1%
- National Forest<1%
- State Trust Land<1%
- Unclassified ownership2%
- Private97%
“Ownership unclassified” means the source dataset does not record an owner for that acreage. It is not known to be public or private.
Where elk live in the unit
Colorado Parks & Wildlife maps elk seasonal ranges statewide. This is how much of GMU 83 each range covers — the single best clue to whether elk are here in September, in November, or only passing through. The layers overlap, so they do not add to 100%.
- Overall Range100%the full extent of range CPW maps for elk — near 100% on most units, and not a statement about when elk are present
- Winter Range60%used in winter
- Summer Range41%used in summer
- Winter Concentration23%where elk bunch up in winter
- Summer Concentration10%where elk bunch up in summer
- Migration Corridors8%movement between ranges, not residence
- Resident Population8%the only layer that means year-round use
Elk seasons & weapons (2026)
| Season | Dates | Tags offered |
|---|---|---|
| Archery | September 2 – September 30 | Either-sex |
| Muzzleloader | September 12 – September 20 | Either-sex, Antlerless |
| 1st Rifle | October 14 – October 18 | Either-sex |
| 2nd Rifle | October 24 – November 1 | Either-sex |
| 3rd Rifle | November 7 – November 15 | Either-sex |
| 4th Rifle | November 18 – November 22 | Either-sex, Antlerless |
Dates span every hunt code of that type in this unit and can differ by code. Confirm the current brochure with Colorado Parks & Wildlife before applying.
Fall weather
- September — highs around 73°F, lows around 41°F (mid-elevation normals)
- October — highs around 62°F, lows around 30°F, about 1.5 in of snow (mid-elevation normals)
- November — highs around 49°F, lows around 20°F, about 3.7 in of snow (mid-elevation normals)
GMU 83 elk hunting FAQ
Is this unit realistic for an applicant with no preference points?
Yes. Draw difficulty for the easiest qualifying bull or either-sex hunt code is Easy, often drawing at zero preference points for adult Colorado residents. However, this applies only to the lowest-tier hunt in the primary draw; other weapons, seasons, and nonresident applications may require substantially more points. Check the detailed draw summary for the specific hunt code you intend to apply for.
How much public ground can a hunter actually hunt on?
Approximately 0.9 percent of the unit—roughly 11 square miles—is open to public hunting, consisting of BLM and State Wildlife Areas. The other 99 percent is private or otherwise closed, making legal access the limiting constraint regardless of terrain. Hunters must verify current access points and seasonal closures before planning a trip.
Which seasons align with the rut, and which come later?
Archery (September 2–30) and Muzzleloader (September 12–20) occur during rut onset and the primary rut, when bulls are active and responsive. The four Rifle seasons begin October 14 and run through November 22, spanning the late rut, post-rut recovery, and early migration period. Later rifle seasons offer different calling and glassing patterns as bulls become less vocal and elk begin moving toward winter ground.
What should a hunter expect regarding elk movement through the fall?
Winter Range covers 60 percent of the unit and Winter Concentration marks 23 percent, indicating that elk shift downslope as weather cools. Temperature drops from around 73 degrees Fahrenheit in September to roughly 49 degrees in November, and November snowfall averages 3.7 inches monthly. Hunters should expect elk to trend toward lower elevations as the season advances, though the timing and extent of movement depend on weather and snow accumulation.
Does the gentle terrain make public-land hunting easy here?
Terrain walkability and legal access are separate constraints. While 72 percent of the unit is gentle or rolling slopes, the unit offers only 0.9 percent public hunting ground. Difficult terrain elsewhere would be irrelevant; here, the challenge is finding legal ground to hunt, not crossing steep country once on it.
Is this a crowded unit despite the easy draw?
Yes. The unit experiences extreme hunter pressure despite easy draw odds. An easy-to-draw unit near populated areas or accessible via major roads can be heavily hunted on the small amount of public ground available. Limited public acreage concentrates hunters into a small footprint, which may increase human contact and elk displacement even if the draw itself is competitive.
Data sources & methodology
- Colorado Parks & Wildlife — Big Game hunting — seasons, weapons, hunt codes and license types
- CPW — Primary Draw rules — how preference points and the hybrid draw work
- CPW — Elk statistics, draw recap and Drawn Out At reports — the point levels behind the draw-difficulty bands
- CPW — Secondary Draw — licenses remaining after the primary draw
- CPW — Maps and GIS (Species Activity Mapping) — elk seasonal range
- CPW — State Trust Land Finder — which State Trust acreage is enrolled and open to public hunting
- Federal and state land-ownership datasets — land ownership and access
- NOAA climate normals — fall weather
Draw difficulty is a qualitative band, not published odds — the note under the summary above states exactly which hunt code it describes. Land shares are separate, non-overlapping categories: publicly owned is not the same as open to hunting, and State Trust Land is huntable only where CPW has enrolled it. Unit data last updated August 28, 2026.