Bield: hunt

West

Uniform statewide

Peak rut dates in Colorado.

Colorado's whitetail rut peaks November 10–20 in the eastern plains river bottoms — the only part of the state where huntable whitetail populations exist.

Peak breeding window: Nov 10 – Nov 20

Rut phases by zone

Pre-rut, peak, post-rut, late.

Peak Breeding column is highlighted — that's when most does are in estrus.

  • Zone

    Eastern Plains River Bottoms (Whitetail)

    Peak breeding

    Nov 10 – Nov 20

    Pre-rut

    Oct 28 – Nov 9

    Post-rut

    Nov 21 – Dec 4

    Late rut

    Dec 9 – Dec 22

What drives the rut here

Whitetail in Colorado are concentrated along the eastern plains river systems (South Platte, Arkansas, Republican drainages). The rest of the state is mule deer country with a separate, earlier rut window. Whitetail peak conception clusters in the second half of November in the river-bottom habitat. Colorado Parks and Wildlife publishes deer-program data covering both species.

Sources

Data sourced from Colorado Parks and Wildlife deer-program reports. Mule deer rut data in western Colorado is published separately.

Colorado Parks and Wildlife

Last verified June 10, 2026

Writers and biologists are welcome to cite these windows. Link to this page so readers get the current numbers — agencies revise, and we keep up.

Always verify with the official agency before basing planning decisions on this page. Peak windows shift year to year.

Get rut intel for your specific land.

State-wide windows are a starting point. Bield: Hunt logs every sit, observation, and condition on your property — and turns three seasons of your data into patterns no generic calendar can match.

Get notified at launch →

Rut timing in nearby states · West

All states with published data