Colorado Unit 63 Mule Deer Hunting Guide

Colorado Unit 63 sits in the northwest part of the state and has built a reputation among mule deer hunters as a unit that consistently puts venison in the cooler. For hunters digging into where to spend hard-earned deer points, Unit 63 deserves a close look — it combines solid harvest numbers, a meaningful chunk of public ground, and a trophy pedigree tied to counties that have produced quality bucks for decades.

At 236,200 acres with elevations ranging from 5,002 to 11,788 feet, Unit 63 offers a broad cross-section of mule deer habitat — from lower sagebrush benches and agricultural fringe up into high timber and alpine basins. With 59% public land, the majority of the unit is accessible to hunters without needing a private lease or landowner voucher, though the remaining 41% in private hands means careful attention to land ownership boundaries is a must. There's no designated wilderness in this unit (0%), which means access via roads and trails tends to be more straightforward than in units with heavy wilderness restrictions.

HuntPilot Analysis: Is Unit 63 Worth Applying For?

Based on the data compiled by HuntPilot, Unit 63 stacks up as a strong option for hunters chasing a combination of opportunity and quality. The harvest numbers tell a clear story of consistency: success rates have run 65% to 83% over the past four years, which is well above what many limited-entry deer units produce nationally. That kind of success rate suggests good deer densities and a herd that isn't being hammered into hiding by excessive pressure.

The buck:doe ratio recorded in the 2024 survey came in at 35:100, based on a single survey year. That's a modest ratio and, combined with the limited sample size, should be read with some caution rather than treated as a definitive herd health indicator. Still, a ratio in that range is not unusual for a well-managed unit and doesn't raise the same red flags as suspiciously inflated numbers would.

Where Unit 63 really earns its reputation is trophy potential. The counties overlapping this unit carry an extensive history of trophy-class mule deer entries, which points to exceptional trophy potential over time. That doesn't mean every hunter walks out with a giant, but it does mean the genetics and habitat exist to produce mature bucks with real mass and spread. Hunters willing to pass on the first legal buck and put in scouting time have a legitimate shot at connecting with something well above average.

The combination of majority public land, high success rates, and a trophy-rich county backdrop makes Unit 63 a unit worth prioritizing for hunters who have accumulated enough points to be competitive, or for residents weighing where to spend points they've built up. It's not a unit to overlook in the research phase.

Harvest Success Rates

Unit 63's harvest data over the last four years shows a unit that reliably produces filled tags:

• 2025: 436 hunters, 302 harvested — 69% success
• 2024: 786 hunters, 514 harvested — 65% success
• 2023: 793 hunters, 571 harvested — 72% success
• 2022: 702 hunters, 580 harvested — 83% success

These are unit-wide totals across all deer hunts offered in Unit 63, and the trend is notable — success rates have stayed above 65% in every one of the last four years, with 2022 standing out at 83%. The drop in hunter numbers from 793 in 2023 to 436 in 2025 is worth watching; fewer hunters afield combined with still-strong success rates could reflect tighter tag allocations rather than declining deer numbers, but hunters should verify current quota trends before assuming either direction. Regardless of the cause, this is a unit where a properly prepared hunter has good odds of filling a tag, which is a meaningful data point when deciding where to spend limited vacation days and points.

Trophy Quality

Trophy data tied to the counties overlapping Unit 63 points to exceptional trophy potential. This region has a long, extensive history of producing record-book mule deer, and that trophy pedigree is shared across neighboring units in the same counties — meaning bucks attributed to this trophy history could have come from Unit 63 or from adjacent units drawing on the same county-level herd.

What this means practically: hunters targeting Unit 63 specifically for trophy quality should understand that big bucks exist in this country, but they are not evenly distributed, and pressure on public land can push mature deer into harder-to-reach terrain or onto private ground during daylight hours. Hunters serious about trophy potential should plan to get away from easy access points, glass extensively, and be patient rather than settling for the first buck encountered — especially given the healthy success rates already documented above, which suggest most hunters are filling tags without needing to compromise on quality if they're willing to put in the time.

Herd Health & Population Trends

The only wildlife survey data available for Unit 63 comes from a single year — 2024 — showing a buck:doe ratio of 35:100. Because this reflects just one survey year, it should be treated as a snapshot rather than a definitive trend. A ratio in the mid-30s per 100 does suggest a herd with a reasonable number of mature bucks relative to does, but without multi-year data to compare against, hunters shouldn't over-interpret this single data point. Anyone relying heavily on herd composition for hunt planning should check HuntPilot or Colorado Parks and Wildlife for updated survey data as more years become available.

Access & Terrain

Unit 63 spans a dramatic elevation range — from 5,002 feet up to 11,788 feet — which means the unit holds everything from low-elevation sagebrush and agricultural transition zones to high alpine terrain near timberline. This range gives hunters options depending on season timing and weather: lower-elevation country tends to hold deer earlier and later in the year, while high country can concentrate deer during warmer stretches before pushing them down as conditions change.

With 59% public land, the majority of Unit 63 is open to hunters without requiring private access, which is a meaningful advantage over units where public ground is scarce. That said, with 41% of the unit in private hands, hunters need to be diligent about verifying boundaries — checking public land layers before heading out is essential, and HuntPilot's mapping tools can help hunters identify public parcels, access points, and boundary lines before making the trip.

There is no wilderness designation in Unit 63 (0%), which means hunters won't run into the access restrictions or additional planning burdens that come with wilderness travel in other units. Roads and trails should provide more conventional access compared to wilderness-heavy units elsewhere in the state, though hunters should still expect variable terrain difficulty given the elevation swing — from easier walking in lower benches to genuinely rugged high country requiring more physical preparation.

How to Apply

Both residents and nonresidents must hold a qualifying license before applying — this license fee is charged in addition to the application fee and is a mandatory prerequisite, not optional. Nonresidents should budget for the full stack of fees (application, license, tag, and point fee if building points) when planning their total cost to apply.

For current draw odds specific to Unit 63's hunt codes, visit the HuntPilot Colorado state page at /states/co, where year-specific odds and quota data are maintained separately from this evergreen guide.

Application dates and fees change every draw cycle. For the current deadlines, fees, and draw odds, see HuntPilot's Colorado page at /states/co.

Frequently Asked Questions

What is the terrain like in Colorado Unit 63? Unit 63 covers a wide elevation band from 5,002 to 11,788 feet, offering a mix of lower sagebrush and agricultural-fringe terrain up through timbered slopes and high alpine basins near the top of the range. There is no wilderness designation in the unit, so access tends to be more conventional than in wilderness-heavy units, though the elevation swing means terrain difficulty varies significantly depending on where hunters choose to hunt.

What is harvest success like in Unit 63? Harvest success has been strong and consistent in recent years, ranging from 65% to 83% between 2022 and 2025. In 2025, 436 hunters harvested 302 animals for a 69% success rate, while 2022 saw an 83% success rate among 702 hunters. These are among the more favorable success numbers a hunter will find in a limited-entry deer unit.

How big are the mule deer in Unit 63? The counties overlapping Unit 63 carry an extensive trophy history, pointing to exceptional trophy potential for mule deer in this area. While not every buck taken will be a record-book animal, the genetics and habitat exist to produce mature, heavy-antlered deer, particularly for hunters willing to scout hard and pass on the first legal buck they see.

Is Unit 63 worth applying for? Based on the available data, yes — Unit 63 combines majority public land access (59%), consistently high harvest success rates, and a trophy-rich county history that together make it a strong choice for hunters who have the points or draw priority to be competitive. It's a unit that rewards both opportunity-focused hunters and those chasing a genuinely mature buck.

Does Unit 63 have wilderness access restrictions? No. Unit 63 has 0% wilderness designation, so hunters won't encounter the special access considerations or guide requirements that apply in wilderness areas elsewhere in Colorado. Access is primarily via standard roads and trails across the unit's public land base.