CO Bighorn Sheep Hunting

Colorado Bighorn Sheep Units & Season 2026

Bighorn Sheep season in Colorado runs Aug 1 – Oct 25 across 67 GMUs.

143 Seasons2 Weapon Types

Rifle

GMUTypeDatesHarvestPressurePublic
Unit S11st RifleSep 2 — Oct 5—0.01/mi²88%
Unit S11st RifleSep 2 — Oct 5—0.01/mi²88%
Unit S12nd RifleOct 11 — Nov 2—0.01/mi²88%
Unit S101st RifleSep 2 — Oct 2—0.00/mi²89%
Unit S111st RifleSep 2 — Oct 2—0.01/mi²91%
Unit S111st RifleSep 9 — Oct 2—0.00/mi²91%
Unit S121st RifleSep 2 — Oct 2—0.01/mi²75%
Unit S121st RifleSep 9 — Oct 2—0.00/mi²75%
Unit S131st RifleSep 2 — Oct 2—0.01/mi²77%
Unit S151st RifleAug 23 — Sep 3—0.01/mi²94%
Unit S152nd RifleSep 6 — Oct 5—0.00/mi²94%
Unit S151st RifleSep 20 — Oct 5—0.00/mi²94%
Unit S161st RifleAug 23 — Sep 3—0.01/mi²95%
Unit S162nd RifleSep 6 — Oct 5—0.01/mi²95%
Unit S161st RifleSep 20 — Oct 5—0.01/mi²95%
Unit S171st RifleSep 2 — Oct 2—0.02/mi²80%
Unit S171st RifleSep 9 — Oct 2—0.01/mi²80%
Unit S181st RifleSep 2 — Oct 5—0.00/mi²76%
Unit S181st RifleSep 2 — Oct 5—0.00/mi²76%
Unit S191st RifleSep 2 — Oct 2—0.00/mi²90%
Unit S21st RifleSep 2 — Oct 2—0.00/mi²83%
Unit S201st RifleSep 2 — Oct 2—0.01/mi²90%
Unit S211st RifleSep 2 — Oct 2—0.01/mi²64%
Unit S211st Split RifleSep 13 — Oct 2—0.00/mi²64%
Unit S211st RifleSep 13 — Oct 2—0.01/mi²64%

+ 92 more

Archery

GMUTypeDatesHarvestPressurePublic
Unit S121st ArcheryAug 1 — Aug 31—0.02/mi²75%
Unit S201st ArcheryAug 1 — Aug 31—0.01/mi²90%
Unit S261st ArcheryAug 1 — Aug 31—0.01/mi²90%
Unit S321st ArcheryAug 1 — Aug 19—0.01/mi²42%
Unit S322nd ArcheryAug 20 — Sep 7—0.01/mi²42%
Unit S322nd ArcheryAug 20 — Sep 7—0.00/mi²42%
Unit S341st ArcheryOct 1 — Oct 15—0.01/mi²65%
Unit S341st ArcheryOct 15 — Oct 31—0.01/mi²65%
Unit S342nd ArcheryDec 1 — Dec 15—0.02/mi²65%
Unit S351st ArcheryAug 1 — Aug 31—0.00/mi²31%
Unit S371st ArcheryNov 1 — Nov 30—0.00/mi²63%
Unit S381st ArcheryDec 1 — Dec 31—0.00/mi²18%
Unit S391st ArcheryAug 1 — Sep 30—0.00/mi²47%
Unit S441st ArcheryAug 21 — Sep 16—0.02/mi²73%
Unit S461st ArcheryNov 10 — Nov 30—0.01/mi²27%
Unit S491st ArcherySep 2 — Sep 26—0.00/mi²46%
Unit S511st ArcheryAug 1 — Aug 31—0.00/mi²13%
Unit S541st ArcheryNov 1 — Nov 30—0.01/mi²79%
Unit S571st ArcheryDec 1 — Dec 31—0.00/mi²30%
Unit S571st ArcheryDec 8 — Dec 31—0.00/mi²30%
Unit S61st ArcheryNov 10 — Nov 30—0.00/mi²53%
Unit S661st ArcheryAug 1 — Aug 31—0.01/mi²87%
Unit S691st ArcheryAug 1 — Aug 31—0.01/mi²80%
Unit S692nd ArcheryNov 1 — Nov 30—0.01/mi²80%
Unit S711st ArcheryAug 23 — Oct 2—0.00/mi²80%

+ 1 more

Bighorn Sheep in Colorado: FAQ

When is bighorn sheep season in Colorado?

Bighorn Sheep season in Colorado currently runs Aug 1 to Oct 25, across 143 season rows and 67 GMUs, split by weapon (Rifle, Archery).

Where is the best place to hunt bighorn sheep in Colorado?

The best GMUs for bighorn sheep in Colorado depend on harvest success and public-land access, both shown per GMU above. Compare units before you apply for a tag or plan your hunt.

Plan your Bighorn Sheep hunt in Colorado

View GMU boundaries, public land, and walk-in access areas on our interactive map.

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Also see Colorado seasons, public land, and license.

Bighorn Sheep seasons in Colorado — offline

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