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Colorado hunting unit

GMU 43: public land and hunting map

GMU 43 is one of Colorado Parks and Wildlife’s 186 Game Management Units (GMUs) in Colorado. It covers about 525 square miles (336,013 acres), and roughly 73% of it is public land: Forest Service 62%, BLM 11%, state land under 1%.

Measured Oct 12, 2026 from agency boundaries and USGS PAD-US 4.1 · sources and method

Who manages the land

  • Bureau of Land Management11%
  • U.S. Forest Service62%
  • State land (wildlife, trust and natural-resource agencies)under 1%

Share of the unit’s area. Federal agencies plus state wildlife, trust and natural-resource land, as the WikiHunt map classifies it. The rest is private, tribal, local or other land.

Rut: Published deer rut timing for Colorado: Mid-Nov – mid-Dec. Rut dates and sources for Colorado.

Outline of GMU 43 and the units around itGMU 34 · 92% publicGMU 42 · 55% publicGMU 431 · 73% publicGMU 444 · 66% publicGMU 47 · 92% publicGMU 521 · 75% publicGMU 55 · 89% public
GMU 43 in orange; neighbours shaded by public land share (darker = more public). Tap a neighbour to open it.

Units next to GMU 43

Colorado season dates, 2026

Statewide general seasons. Many units have their own dates, quotas or draw-only hunts, so check the unit in the regulations before you go.

SpeciesSeason2026 dates
Deer Archery Deer Sep 2 – Sep 30
Deer Muzzleloader Deer Sep 12 – Sep 20
Deer Combined Rifle Deer Oct 14 – Nov 22
Elk Archery Elk Sep 2 – Sep 30
Elk Muzzleloader Elk Sep 12 – Sep 20
Elk Combined Rifle Elk Oct 14 – Nov 22
Pronghorn Rifle Antelope Oct 3 – Oct 11
Black bear Fall Bear Sep 2 – Nov 30

Full notes on the Colorado page · Colorado regulations.

Questions

How much of GMU 43 is public land?

About 73% of GMU 43 (245,962 of 336,013 acres) is federal or state public land in USGS PAD-US 4.1, mostly U.S. Forest Service, Bureau of Land Management and State land (wildlife, trust and natural-resource agencies). Public land is not always open land: check access and closures before you go.

Who manages the land in GMU 43?

U.S. Forest Service: 62%; Bureau of Land Management: 11%; State land (wildlife, trust and natural-resource agencies): under 1%. The rest is private, tribal, local government or other land.

Which units border GMU 43?

GMU 34, GMU 42, GMU 431, GMU 444, GMU 47, GMU 521 and GMU 55.

Where are the season dates and rules for GMU 43?

Colorado Parks and Wildlife sets them. Start at the Colorado hunting regulations. WikiHunt shows the statewide general seasons on the Colorado page and in the app.

Sources and method

  • Boundary: Colorado Parks and Wildlife, the same layer the WikiHunt map draws.
  • Public land: USGS Protected Areas Database (PAD-US) 4.1, Fee Managers layer (public domain).
  • Method: the unit and PAD-US polygons are simplified to about 100 m and measured on a grid of about 250 cells across the unit, so overlapping records are counted once. Expect about ±1 percentage point.
  • Season dates: WikiHunt’s season table, updated Sep 2, 2026, checked against each state’s published regulations. Dates change; the regulations win.
  • Last updated: Oct 12, 2026. Spotted a mistake? Tell us.