Colorado hunt codes, 2026

A Colorado hunt code, such as E-M-511-O1-R, packs the species, sex, hunt area, season and method into eight characters. These pages decode 831 elk and deer codes for the 1st to 4th rifle seasons.

How to read a hunt code

• First letter: the species. E is elk, D is deer.
• Second letter: the sex. M is male (bull or buck), F is female (cow or doe), E is either sex.
• Three digits: the hunt area number. It is often a unit number, but one code can be valid in several units.
• Letter and digit: the season. O1 to O4 are the 1st to 4th regular rifle seasons.
• Last letter: the method. R is rifle.

Browse by species

• Elk rifle hunt codes (521)
• Deer rifle hunt codes (310)

Read from the 2026 Colorado Big Game brochure. Your license and the current brochure are the authority.