Colorado Unit 43 Elk Hunting Guide
Colorado Unit 43 offers elk hunters a substantial and varied landscape in the heart of the Centennial State. Spanning 336,309 total acres with 79% public land and an elevation range from 5,650 to 14,042 feet, this unit provides genuine public land access across a dramatic vertical spectrum — from semi-arid lower drainages to high alpine terrain near the summit. Hunters researching Colorado Unit 43 elk hunting will find a unit where conditions, draw pressure, and herd health create a complex picture worth understanding before committing application points.
The unit's 27% wilderness designation adds another layer to the access calculus. Unlike Wyoming, Colorado does not require nonresidents to hire a licensed guide to hunt wilderness — hunters of any residency can pursue elk on wilderness land without an outfitter. That said, 27% wilderness terrain typically means rugged, roadless country that demands backcountry fitness, packable camps, and a realistic assessment of your ability to get an elk out on foot or with stock animals. The remaining public land outside wilderness is more road-accessible and likely absorbs the bulk of hunting pressure.
Understanding what three years of harvest data actually say about this unit — and what the wildlife surveys reveal about herd composition — is essential before spending application fees and preference points. Here is what the data shows.
Harvest Success Rates
Three years of recent harvest data from HuntPilot reveal a unit with meaningful fluctuation in both hunting pressure and success rates — and that variability tells a story worth examining closely.
In 2023, Unit 43 hosted 6,087 hunters with 650 animals harvested, producing an 11% overall success rate. That is a high-pressure year by any measure — over six thousand hunters competing across the unit drove success down to single digits as a practical matter for many hunters in the field. Then came a significant shift: in 2024, with 5,385 hunters participating, 955 elk were harvested for an 18% success rate — a notable improvement despite still-substantial hunter numbers. The most recent data point, 2025, shows a dramatic drop in total hunters to just 1,562, with 236 harvested at a 15% success rate.
The 2025 numbers warrant attention. The drop from 5,000+ hunters to under 1,600 likely reflects changes in draw structure, tag allocation adjustments, or the stratification of limited-entry versus over-the-counter opportunities rather than a collapse in the herd. Success rates across all three years cluster in the 11–18% range, which is fairly typical for a large Colorado unit that serves a mix of draw and general hunters. The 2024 result of 18% success with nearly a thousand animals harvested represents the strongest combined outcome in the three-year window.
Hunters should not read the 2025 low-participation number as an automatically "easier" environment — unit-wide success rates blend all hunt types, and the composition of who is hunting in any given year shapes that number significantly.
Herd Health & Population Trends
Wildlife survey data spanning six survey years from 2018 through 2024 shows an average bull-to-cow ratio of 25:100 for Unit 43.
That ratio places the unit in the lower tier of herd composition benchmarks. Colorado Parks and Wildlife typically targets bull-to-cow ratios above 30:100 for healthy, balanced elk herds — and premium limited-entry units often see ratios well above that threshold. At 25:100, Unit 43's herd has more bulls than many heavily pressured units, but is not at the level that generates high rates of mature, trophy-class bull encounters.
A 25:100 average across six years is a consistent signal rather than a noisy data point from a single small survey. This is a six-year average, giving it statistical credibility. What it suggests practically: the unit has a functional elk population but is not managed primarily as a mature-bull trophy unit. Hunters drawing permits here should plan for a mix of young and middle-aged bulls, with mature animals present but not abundant. Cow-to-bull ratios at this level often reflect a combination of moderate hunting pressure, accessible terrain that concentrates pressure on bulls, and management objectives focused on population maintenance rather than trophy production.
Trophy Quality
The counties overlapping Colorado Unit 43 carry a moderate history of trophy records. Using the trophy record scale as a calibration reference — where legitimate trophy-class elk are already at the top fraction of animals taken across all western units — a moderate regional history means the area has produced trophy-class bulls, but not with the frequency associated with Colorado's elite limited-entry units.
The critical context here: trophy records are logged by county, not by hunt unit. The counties overlapping Unit 43 are shared with neighboring units, meaning the same regional record pool is distributed across multiple units. A bull taken from an adjacent unit counts in the same county tally. This is an important caveat — it prevents attributing all county-level trophy production specifically to Unit 43.
What a moderate trophy history combined with a 25:100 average bull-to-cow ratio suggests: mature bulls exist in the unit and some reach trophy dimensions, but hunters chasing record-caliber animals should weigh whether more exclusive, limited-entry units in Colorado might better suit that goal. For hunters focused on a quality elk experience, filled freezer, and the opportunity to encounter a mature bull — Unit 43 is a realistic option. For hunters whose primary objective is a record-book bull, the herd composition data and moderate trophy history counsel lower expectations than the state's premier units.
Access & Terrain
With 79% public land across 336,309 acres, Unit 43 offers genuine DIY access. The math on this is straightforward: roughly 265,000 acres of public ground is available to walk-in hunters. That is substantial by any standard, and Colorado's ownership patterns generally distribute that public land across the unit rather than concentrating it in inaccessible corners.
The elevation range from 5,650 to 14,042 feet defines a landscape of extreme vertical relief. The lower elevations include transitional terrain — drier, more open country that elk may use early in the season and during warmer periods. As elevation climbs through the middle bands, hunters encounter the timbered slopes, aspen drainages, and dense conifer terrain that define classic Colorado elk habitat. Above treeline, the high alpine basins present a different hunting environment — more open, physically demanding, and requiring longer approaches.
The 27% wilderness component covers approximately 91,000 acres of the unit's most rugged terrain. This is genuine backcountry — the kind of country that demands multi-day camps, significant physical conditioning, and comfort with remote self-rescue situations. Hunters willing to push into wilderness areas on foot will face lower pressure from casual hunters and may encounter elk that have had less contact with hunters. The non-wilderness public land, by contrast, tends to be more road-accessible and will concentrate a higher proportion of hunters.
For nonresidents specifically: Colorado does not mandate an outfitter for wilderness hunting. DIY wilderness elk hunting in Unit 43 is legal for any licensed hunter. The practical constraints are physical and logistical, not regulatory.
HuntPilot Analysis
Is Colorado Unit 43 worth applying for?
The honest answer depends on what a hunter is trying to accomplish. Here is what the data supports:
For resident hunters: Unit 43 offers substantial public land access, a manageable draw in most years, and realistic harvest potential. The three-year average success rate across the unit — blending 2023's 11%, 2024's 18%, and 2025's 15% — gives resident hunters reasonable expectations of a 13–18% success probability in a given season, though individual results will vary significantly based on hunt type, timing, and effort. Residents with lower point totals should investigate whether this unit draws at low or no points before committing — HuntPilot's unit page at /states/co has current draw data.
For nonresident hunters: The fee structure matters here. For 2026, nonresident applicants face an $11 application fee, a $845 tag fee, and a $117.62 license fee required to apply — totaling just under $1,000 in committed fees upon drawing, plus a $100 point fee if applying for points only. That is a significant financial commitment, and the 25:100 bull-to-cow ratio and moderate trophy history mean nonresidents with limited Colorado point banks should weigh whether a higher-investment, higher-quality limited-entry unit might better justify the cost. If nonresidents are looking for a legitimate Colorado elk experience with strong public land access and are not locked into trophy objectives, Unit 43 has merit.
The trophy hunter's calculus: The moderate trophy history and below-target bull-to-cow ratio make Unit 43 a questionable choice for hunters whose primary goal is a record-class bull. Colorado has limited-entry units with dramatically higher bull-to-cow ratios and stronger trophy histories. If trophy elk is the mission, hunters should explore those units first and evaluate the point requirements with current HuntPilot draw data.
Bottom line: Unit 43 is a legitimate, accessible, public-land elk unit that suits opportunity-focused hunters better than it suits dedicated trophy hunters. The terrain is challenging but rewarding, the public land base is strong, and the harvest data shows it is possible — just not easy — to fill a tag here.
How to Apply
Colorado elk applications are managed through Colorado Parks and Wildlife's online licensing system. For 2028, the application deadline for all regular elk hunts is April 1, 2028. For 2026, applications open March 1, 2026 with a deadline of April 7, 2026 for both residents and nonresidents.
2026 Fee Summary:
- Nonresident: $11 application fee + $845 tag fee + $117.62 license fee (required to apply) + $100 point fee (if applying for points only)
- Resident: $9 application fee + $70 tag fee + $53.19 license fee (required to apply) + $50 point fee (if applying for points only)
Note that Colorado requires hunters to purchase a valid hunting license before submitting a draw application. The license fees listed above are not optional — they are a prerequisite for the application, in addition to the application fee itself.
Colorado uses a true preference point system for elk draws. Hunters with the highest point totals are drawn first, making points genuinely predictive of draw success — though demand for desirable units still means high-point holders are not guaranteed a tag in competitive draws. Points accumulate when a hunter applies and does not draw. A successful draw consumes accumulated points and the hunter restarts near zero.
For current draw odds, per-hunt point requirements, and tag availability specific to Unit 43, visit HuntPilot at /states/co for up-to-date draw analysis.
Dates and fees are subject to change. Always verify current application details at the Colorado Parks and Wildlife website before applying.
Frequently Asked Questions
What is the terrain like in Colorado Unit 43?
Unit 43 spans a dramatic elevation range from approximately 5,650 feet to over 14,000 feet, covering transitional lower-elevation drainages, heavily timbered mid-elevation slopes, and high alpine basins above treeline. The unit includes 27% designated wilderness, meaning a significant portion is roadless backcountry requiring extended approaches. The remaining public land — which constitutes 79% of the 336,309-acre unit — includes more accessible terrain for road-based camp setups and day hikes. Hunters should prepare for physically demanding country regardless of where they hunt within the unit.
What is the harvest success rate in Colorado Unit 43?
Recent data shows unit-wide success rates of 11% in 2023 (6,087 hunters, 650 harvested), 18% in 2024 (5,385 hunters, 955 harvested), and 15% in 2025 (1,562 hunters, 236 harvested). The three-year average clusters around 15%, which is in line with typical Colorado elk units. Individual success varies considerably based on hunt type, effort, and timing.
How big are the elk in Colorado Unit 43?
The counties overlapping Unit 43 carry a moderate trophy history — the area has produced trophy-class bulls, but not with the frequency of Colorado's premier limited-entry units. The six-year average bull-to-cow ratio of 25:100 indicates a functional but not heavily bull-dominated herd. Hunters should expect a mix of younger and middle-aged bulls, with mature animals present but not abundant. Hunters whose primary goal is a record-class bull may find Colorado's more exclusive limited-entry units better suited to that objective.
Is Colorado Unit 43 worth applying for?
For opportunity-focused hunters — especially residents — Unit 43 offers a compelling combination of 79% public land, a wide-open elevation range, and harvest success rates in the 11–18% range over recent seasons. For nonresidents committing close to $1,000 in fees upon drawing, and for trophy-dedicated hunters, the moderate herd composition data and trophy history suggest carefully comparing this unit against higher-tier Colorado options. For current draw odds, visit HuntPilot's Colorado page at /states/co.
Do nonresident hunters need a guide to hunt wilderness in Colorado Unit 43?
No. Colorado does not require nonresident hunters to hire a licensed guide or outfitter to access designated wilderness areas. Any licensed hunter — resident or nonresident — can legally pursue elk in Unit 43's wilderness without an outfitter. The practical challenges of wilderness elk hunting (remote access, animal recovery, camp logistics) are significant, but there is no legal mandate for a guide in Colorado as there is in Wyoming.