Colorado · Deer Hunting Data

Colorado Deer Unit 21

Sightings, hotspots, and hunt insights for Colorado Game Management Unit 21.

Colorado's Unit 21 ranks in the top 43% of our tracked deer units, with 45 verified sightings concentrated across 18 hotspot clusters that put hunters in position to pattern consistent activity. Our data shows where mule deer congregate through season, from early high-country movements to late-season low-elevation pushes. Rather than burning boots on speculation, use real sighting clusters to cut scouting time in half. Load these verified hotspots directly into onX or your preferred mapping app and hunt data-driven confidence instead of hope.
45
Total Deer Sightings
18
Hotspots Identified
Active
Status · Data Available

Hunt Unit 21 with confidence.

The Colorado - Deer Data Pack includes detailed heat maps, GPS coordinates, and unit-by-unit hotspots for every Colorado Deer unit — including Unit 21. 45 sightings worth of data, ready to upload to onX or your favorite hunting app.

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How this data was collected

Data Hunt Guide aggregates publicly available sighting reports from across the web — social media, hunting forums, harvest reports, and trail-camera shares — and uses a proprietary algorithm to identify high-activity zones (hotspots) within each unit. Our team verifies coordinates manually before publication. Unit 21’s 45 sightings represent 18 distinct hotspot clusters.