Colorado Unit 35 Mule Deer Hunting Guide

Colorado Unit 35 sits in the Gore Range country of north-central Colorado, spanning elevations from 6,137 feet up to 11,304 feet across 171,605 acres. For hunters researching mule deer hunting opportunities in this part of the state, Unit 35 is a well-known name among Colorado's OTC and limited-draw crowd alike, and it draws consistent attention from residents and nonresidents building point strategies for the region.

With 76% of the unit classified as public land, Unit 35 offers a genuinely DIY-friendly landscape — a big driver of its popularity. The terrain ranges from sagebrush flats at lower elevations to steep, timbered ridgelines and alpine basins near treeline, giving hunters a wide range of habitat to work depending on season timing and weather. This is rugged country, and hunters who put in the legwork to get away from access points tend to find better deer numbers and less pressure.

This article breaks down what the data actually shows for Unit 35 — harvest trends, application costs, herd survey information, and trophy potential — using figures pulled directly from HuntPilot's unit database, so hunters can decide whether this unit deserves a spot on their application list.

Harvest Success Rates

Unit 35's harvest numbers have been remarkably consistent over the past four seasons, which is a good sign for hunters trying to gauge realistic expectations before committing points or cash to an application.

• 2025: 2,273 hunters afield, 965 harvested, 42% success
• 2024: 2,026 hunters afield, 884 harvested, 44% success
• 2023: 1,739 hunters afield, 670 harvested, 39% success
• 2022: 1,592 hunters afield, 728 harvested, 46% success

Success rates have held in the high-30s to mid-40s percent range across all four years, which is solid for a unit carrying this much hunting pressure — hunter numbers have climbed from 1,592 in 2022 to 2,273 in 2025, a jump of nearly 43% in participation. Despite that surge in hunters afield, success rates haven't collapsed, hovering instead in a fairly tight band. That suggests the deer population and habitat are absorbing additional pressure reasonably well, though hunters should expect more competition for prime glassing points and drainages than they might have found five years ago.

Herd Health & Population Trends

The available wildlife survey data for Unit 35 comes from a single survey year (2024), showing an average buck:doe ratio of 24:100. This is a notably low ratio compared to what's typically considered a healthy, mature buck segment in a mule deer herd, and it lines up with anecdotal reports from hunters in the field — several forum posts referencing Unit 35 mention seeing plenty of does with small bucks or no bucks at all, and mature bucks being spotted primarily on private ground.

Because this figure is drawn from only one survey year, it should be treated as a single data point rather than a definitive trend — Colorado Parks and Wildlife survey methodology can vary year to year, and a single-year snapshot doesn't tell hunters whether the ratio is improving, holding steady, or declining. Still, a 24:100 ratio is on the low end, and hunters should calibrate their expectations accordingly: this unit is likely to produce more encounters with younger bucks and does than with older, mature males, at least based on the one year of data available.

Trophy Quality

Trophy records are attributed at the county level rather than to specific hunt units, and the counties overlapping Unit 35 carry an extensive history of trophy-class mule deer entries. That county-level trophy pedigree is shared with neighboring units in the same counties, including Units 36 and 361, which are frequently hunted in combination with 35 due to overlapping tag validity in some draw structures.

Given that history, Unit 35 carries strong trophy potential on paper — the surrounding country has proven over decades that it can produce genuine trophy-class bucks. However, hunters need to reconcile that historical trophy pedigree with the more recent buck:doe ratio data showing a thin mature buck segment in the most recent survey year. The takeaway: trophy-class bucks have come from this general area historically, and the terrain and habitat exist to support them, but the odds of connecting with an exceptional buck in the current herd structure may be lower than the county's historical reputation would suggest. Hunters chasing an old, heavy-antlered buck should be prepared to scout hard, get well off the road system, and be selective, rather than assume this unit is an automatic trophy producer.

Access & Terrain

Unit 35's public land percentage of 76% makes it one of the more accessible units in the region for DIY hunters — the majority of the huntable ground is open to public access, not locked behind private landowners. That said, hunters should not confuse "public" with "easy." The elevation range of 6,137 to 11,304 feet covers everything from sagebrush benches and river-bottom flats to steep, high-alpine terrain near treeline, and the Gore Range country here is known for its ruggedness.

Access on top of some of the more prominent terrain features in the unit is restricted to foot or horse traffic — vehicle travel on certain two-track roads has been closed, and hunters have reported enforcement action against those attempting to drive ATVs into closed areas. Hunters planning to hunt the higher benches and ridgelines should plan on hiking or packing in rather than expecting to drive to elevation.

There is no wilderness acreage listed for Unit 35, so hunters won't run into the wilderness-specific access restrictions that apply in other parts of Colorado. This is public-land, foot-access country, and the combination of high public land percentage and varied terrain means hunters willing to walk away from easy access points can find pockets of lower pressure, even as overall hunter numbers in the unit have risen in recent seasons.

HuntPilot Analysis: Is Unit 35 Worth Applying For?

Unit 35 is a legitimate option for hunters who prioritize public land access and reasonable success rates over guaranteed trophy potential. With 76% public land, success rates consistently in the 39-46% range over the last four years, and a substantial acreage base of 171,605 acres to spread out across, this unit offers real opportunity for a hunter willing to do the work.

Where hunters need to be realistic is on trophy expectations. The counties surrounding Unit 35 carry a genuinely strong trophy history, which keeps this unit on the radar for point-holders looking for a shot at a quality buck. But the most recent survey data shows a buck:doe ratio well below what most hunters would associate with a mature buck-heavy herd, and forum reports from hunters in the unit back that up — mature bucks are being seen mostly on private ground, with public-land encounters skewing toward younger animals.

Rising hunter pressure is also worth factoring in. Hunter numbers grew from 1,592 in 2022 to 2,273 in 2025, a substantial increase that hasn't yet dented success rates but will likely mean more company at trailheads and popular glassing points. Hunters who scout thoroughly and are willing to hike beyond the first ridge from access points will have a real advantage here.

Bottom line: Unit 35 is worth applying for if hunters value public land access, a decent shot at filling a tag, and are realistic that a truly exceptional buck will require significant scouting effort and some luck given current herd demographics. It's not a unit to apply to if the sole goal is a guaranteed shot at an old, heavy-horned buck — for that, hunters should weigh the historical trophy reputation against the thinner recent mature-buck showing and decide how much risk they're willing to accept.

How to Apply

Note that Colorado requires hunters to hold a qualifying habitat stamp/license before their application will be processed — the license fee listed above is separate from and in addition to the application fee and point fee, and residents and nonresidents both need to account for this when budgeting for their application.

Fee structures can vary depending on which application pathway is used, so hunters should confirm which fee schedule applies to their specific application before submitting.

For current draw odds, point requirements, and unit-specific application strategy, check the HuntPilot Colorado state page at /states/co.

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 35? Unit 35 covers a wide elevation range, from 6,137 feet at the lowest points up to 11,304 feet near the highest ridgelines, encompassing sagebrush flats, timbered slopes, and high-alpine basins. The unit sits in the Gore Range area and includes rugged terrain where certain upper roads are closed to vehicle traffic, meaning hunters should expect to hike or use pack stock to reach higher-elevation terrain rather than driving in.

What is harvest success in Unit 35? Success rates over the last four seasons have ranged from 39% to 46%, with 2025 coming in at 42% (965 harvested out of 2,273 hunters), 2024 at 44%, 2023 at 39%, and 2022 at 46%. These rates have held steady even as hunter participation increased significantly, from 1,592 hunters in 2022 to 2,273 in 2025.

How big are the mule deer in Unit 35? The counties overlapping Unit 35 have an extensive history of trophy-class mule deer entries, indicating strong long-term trophy potential in the broader area. However, the most recent survey data (2024) shows a buck:doe ratio of 24:100, which is on the low end for mature buck representation, and hunter reports suggest mature bucks are more commonly found on private land within the unit. Hunters targeting a genuinely large, mature buck should expect to work hard and scout extensively rather than assume an easy encounter.

Is Unit 35 worth applying for? Yes, with caveats. It offers strong public land access at 76%, consistent harvest success in the high-30s to mid-40s percent range, and a large acreage base to hunt. The tradeoff is a recent survey showing a thin mature-buck segment, so hunters chasing trophy-class deer should treat this as a unit with historical trophy pedigree rather than a current guarantee of big bucks. For hunters prioritizing opportunity and a fair chance to fill a tag on public land, it's a solid choice.

How much has hunting pressure increased in Unit 35? Hunter numbers rose from 1,592 in 2022 to 2,273 in 2025 — an increase of roughly 43% over four years. Despite this jump, success rates have remained relatively stable, suggesting the unit's habitat and deer population have so far handled the added pressure without a significant decline in hunter success.