Unit research · Colorado · GMU 128

GMU 128 — Colorado

4% public hunting land across 774,715 ac. Road access is easy — only 21% of the public land is more than a mile from a road. Watch the checkerboard: 4,929 ac of public land has no public route in.

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Deer draw odds (8)Elk draw odds (2)Pronghorn draw odds (5)Odds and pins: free, no account

GMU 128Full map — ownership, roads, wind →

4,340–6,380 ft

elevation range

public hunting land

21%

of public >1 mi from a road

4,929 ac

landlocked public

1.12

road miles per mi²

8 mi

trails on public land

Computed from primary government data by the AGPL pipeline. See the code →

Tags & season

Draw hunts on this ground.

15 limited-entry deer, elk and pronghorn hunts are drawn on GMU 128: apply in the Colorado draw, by the agency's deadline below.

Deer tag · 8 draw hunts (2026)$60.18 resident · $518.41 nonresident

Elk tag · 2 draw hunts (2026)$79.33 resident · $856.65 nonresident

Pronghorn tag · 5 draw hunts (2026)$60.18 resident · $518.41 nonresident

Plus: Qualifying license (annual small game, cheapest adult route)$38.49 resident · $104.86 nonresident

Season dates: see Colorado Parks & Wildlife's regulations

2026 Colorado Big Game brochure (rev. 2026-03-18) ↗

Colorado Parks & Wildlife — licenses and tags ↗Draw odds for Colorado deer →Draw odds for Colorado elk →Draw odds for Colorado pronghorn →How the Colorado draw works →

Fees and draw dates from Colorado Parks & Wildlife, 2026, verified 2026-08-05 — past its verify-by date, confirm with the agency. Tag type from the agency's published draw statistics: a gmu that appears in none of them has no limited-entry hunt we know of. Source: 2026 Colorado Big Game brochure (rev. 2026-03-18) · CPW primary draw · CPW refunds, reversals and exchanges · Chapter W-2 (2 CCR 406-2), approved 2025-05-07.

Land & access

■ BLM 2%■ State wildlife 2%▨ Parks & other public 10%□ Private 87%

Unit area774,715 ac

Public hunting land28,510 ac (4%)

Parks & other public74,891 ac · State trust

Landlocked public4,929 ac (17.3%)

Deer draw pressure4.7 tags/mi² public (0.14 of total area)

Elk draw pressure1.2 tags/mi² public (0.036 of total area)

Pronghorn draw pressure4.5 tags/mi² public (0.14 of total area)

Motorized routes (MVUM + roads)1,350 mi

Mapped trails on public land8 mi

Backcountry

Public land >1 mi from a road6,000 ac (21% of public)

Road density1.12 mi/mi²

Managed byBLM 16k ac · State wildlife 13k ac

Elevation4,340–6,380 ft

Median elevation5,140 ft

Median slope1°

Where the ground sits

4,340 ft6,380 ft

Tap or hover the bars for each elevation band

Slope mix

Which way the slopes face

N 26%

E 26%

S 20%

W 28%

Share of ground steeper than 5° — flat ground has no facing

North slopes hold shade, cover and snow; south slopes open first.

USGS 3DEP 1 arc-second (30 m), slope at native resolution in a local metric projection, sampled on a 200 m grid. See the code →

Unit intelligence report · Pro, $5 a month or $49 a year

833 ac of this gmu has burned — 0% of the unit. The full report assembles it into one printable document and keeps it current as the facts change.

Open the report →

Season conditions — measured, not vibes

Historical temperatures · 2000–2025

Normals for 2000–2025 — tap or hover for a month

Measured at PUEBLO MEMORIAL AIRPORT, 36 km from the unit’s center and ~500 ft below its median elevation — expect the unit to run colder. NOAA ISD-Lite hourly observations.

Harvest — agency survey estimates

Elk · 2024

24% success

56 taken by 237 hunters · 1,825 days afield

18 bulls · 31 cows · 7 calves

Elk hunter success · 2019–2024 · 9% → 24%

Season breakdown · 2024

Season	Success	Harvest	Hunters
1st rifle	0%	0	4
Archery	11%	3	30
Muzzleloader	0%	0	3

Which season is the value play here — same ground, different odds.

Deer · 2024

47% success

82 taken by 174 hunters · 822 days afield

52 bucks · 30 does · 0 fawns

Deer hunter success · 2019–2024 · 32% → 47%

Season breakdown · 2024

Season	Success	Harvest	Hunters
Archery	36%	22	60
Muzzleloader	25%	4	16

Which season is the value play here — same ground, different odds.

Pronghorn · 2024

43% success

118 taken by 278 hunters · 947 days afield

67 bucks · 52 does · 0 fawns

Pronghorn hunter success · 2019–2024 · 36% → 43%

Season breakdown · 2024

Season	Success	Harvest	Hunters
Archery	9%	5	58
Muzzleloader	7%	2	26

Which season is the value play here — same ground, different odds.

Herd-level estimates · 95% CI

deer · DAU D-45 · 2025: 318 harvested (CI 294–344) · 44% success

elk · DAU E-99 · 2025: 384 harvested (CI 341–432) · 23% success

pronghorn · DAU A-7 · 2025: 527 harvested (CI 490–568) · 45% success

CPW’s stratified-survey estimates for the whole herd unit (DAU) this GMU belongs to — published with the uncertainty the per-GMU tables can’t carry.

CPW estimates harvest, hunters, success and recreation days from its Big Game Harvest Survey. Unit tables run 2019-2024; the 2025 report switched to per-hunt-code tables without unit totals, so unit series end at 2024 and 2025 success rates appear on the draw-odds tables instead. Source: CPW Statewide Harvest Estimates (per species-year PDFs on the species statistics pages).

How these numbers are made

public_land_pct = public_area / unit_area
landlocked = public ∖ reachable(roads, corners)
remote = public ∖ buffer(roads, 1 mi)
# AGPL — read the pipeline →

Computed, not curated: no paid research team, no opinions dressed as data. If a number looks wrong, tell us at support@openhuntmaps.com — the fix ships for everyone.

Nearby GMUs

GMU 1333% public · 82% remote GMU 1290% public · 0% remote GMU 8426% public · 17% remote GMU 1232% public · 64% remote GMU 1341% public · 61% remote GMU 13532% public · 1% remote

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