Colorado Unit S09 Bighorn Sheep Hunting Guide

Colorado Unit S09 is one of the most storied — and most physically demanding — bighorn sheep hunting units in the state, sprawling across the rugged high country of the Sangre de Cristo Range. For hunters who have spent years accumulating points in hopes of drawing a Rocky Mountain bighorn sheep tag, S09 represents exactly the kind of unit that keeps sheep hunters checking the draw results every spring: a limited-quota, high-elevation, physically brutal hunt where success is earned, not given.

This unit spans elevations from 6,993 feet up to 14,249 feet across 730,133 total acres, with 63% of that ground in public ownership and 15% falling within designated wilderness. That combination — big vertical relief, mostly public access, and a meaningful wilderness component — defines everything about how this hunt plays out on the ground. Sheep here live in some of the steepest, least forgiving terrain in Colorado, and hunters who draw a tag need to be prepared both physically and logistically for a hunt that regularly humbles even experienced mountain hunters.

Bighorn sheep tags in Colorado are already scarce statewide, and S09 is no exception. This article breaks down what the available harvest data, tag quotas, terrain, and application information actually show — and whether this unit is worth prioritizing points toward.

HuntPilot Analysis: Is S09 Worth Applying For?

Based on data compiled by HuntPilot, Unit S09 is a legitimate once-in-a-lifetime-caliber sheep unit for hunters willing to commit to serious physical preparation and, in most cases, professional guiding assistance. This is not a unit to take lightly or approach casually.

The harvest numbers tell an important story about consistency. Success rates have fluctuated significantly year to year: 73% in 2025, 71% in 2024, and 61% in 2023 represent strong closing stretches, while 2022 (33%) and 2021 (39%) show that this hunt can go sideways even for well-prepared hunters. The outlier year of 2020, with just 4 hunters and a 25% success rate, reflects an unusually small hunter sample rather than a meaningful trend. Overall, the multi-year pattern suggests that hunters who commit real time and resources — scouting, physical conditioning, and often professional guiding — see considerably better outcomes than the average.

Tag quotas here are extremely tight, and getting tighter in at least one category. The S-F-S09-O1-R quota dropped from 4 tags in 2025 to 3 tags in 2026, a 25% reduction. The S-M-S09-O1-A and S-M-S09-O1-R quotas have held stable at 1 and 2 tags respectively for 2026. These are not high-volume hunts by any measure — every tag issued in this unit is precious, and the state is not expanding opportunity here.

Trophy data for the counties overlapping S09 shows a limited history of record-book entries. This doesn't mean big rams aren't present — sheep hunting success in rugged wilderness terrain is notoriously difficult to document at scale — but hunters should not go into this unit expecting it to be a proven trophy factory based on the numbers alone. The physical difficulty of the terrain, rather than a deep trophy pedigree, is what defines this hunt.

The verdict: S09 is worth applying for if a hunter's goal is a genuine, difficult, high-country sheep hunt in one of Colorado's classic sheep ranges — not necessarily if the primary goal is chasing record-book rams. Given the minimal tag numbers, this is a bucket-list unit best pursued by hunters who have already built meaningful point equity and are prepared to invest heavily in scouting or a guided hunt.

Harvest Success Rates

Recent harvest data for Unit S09 shows meaningful year-over-year variability:

• 2025: 22 hunters, 16 harvested — 73% success
• 2024: 42 hunters, 30 harvested — 71% success
• 2023: 46 hunters, 28 harvested — 61% success
• 2022: 42 hunters, 14 harvested — 33% success
• 2021: 36 hunters, 14 harvested — 39% success
• 2020: 4 hunters, 1 harvested — 25% success (very small sample)
• 2019: 32 hunters, 19 harvested — 59% success

The takeaway here is that success rates in S09 are anything but guaranteed. The unit has produced two consecutive strong years (2024 and 2025) after a rougher stretch from 2021–2022, when success dipped into the 33–39% range. This kind of swing is common in sheep units where weather, ram movement, and access conditions during the season can dramatically affect outcomes. Hunters drawing a tag here should plan for a hunt that could go either way and build in enough time afield to maximize their odds — this is not a unit where a weekend trip is likely to produce a ram.

Trophy Quality

Trophy record data for the counties overlapping Unit S09 shows a limited history of entries. This qualitative read means hunters should not assume S09 is a unit with a deep, proven track record of producing record-book rams based on the data available. That said, limited entry data doesn't necessarily equate to poor ram quality — extremely difficult, low-hunter-density wilderness terrain like the Sangre de Cristo high country often produces mature rams that simply go undocumented in formal record books. Hunters should treat any given ram in this unit as a personal trophy of significance given the difficulty of the pursuit, rather than banking on this being a unit known for producing top-end record-book bookings.

Herd Health & Access Considerations

While detailed population survey data wasn't part of the structured dataset for this article, the tag quota trends offer some insight into how Colorado Parks and Wildlife is managing this herd. The reduction in the S-F-S09-O1-R quota from 4 tags to 3 tags between 2025 and 2026 is a meaningful signal — a 25% cut in that hunt category suggests wildlife managers are being conservative with harvest pressure on that portion of the herd, even as other hunt categories (S-M-S09-O1-A and S-M-S09-O1-R) remain flat. Hunters drawing tags in this unit should recognize that the state is actively managing tag numbers rather than expanding them, which reinforces the exclusivity — and the pressure — that comes with drawing here.

Access & Terrain

Unit S09's terrain is the defining challenge of this hunt. With elevations ranging from 6,993 feet at the lowest access points to 14,249 feet at the highest peaks, hunters face nearly 7,300 feet of vertical relief within the unit boundary. This is genuine high-alpine sheep country — steep, rocky, and largely without flat ground except at the very bottom of drainages and the tops of ridgelines.

Public land makes up 63% of the unit's 730,133 acres, giving DIY-minded hunters solid access to huntable ground, though hunters should not underestimate the physical toll of reaching sheep habitat even where access is legally open. The 15% wilderness designation within S09 adds another layer of consideration: wilderness regulations prohibit mechanized access, meaning any hunting inside those boundaries requires foot or stock travel only. Unlike Wyoming, Colorado does not require nonresidents to hire a guide when hunting wilderness areas, so DIY hunters remain legally free to pursue this hunt unguided — but the practical difficulty of doing so in true alpine wilderness should not be underestimated.

Given the terrain profile and the accounts from hunters who have drawn this tag, many choose to bring pack stock, hire local guiding assistance, or otherwise build in significant additional support to handle the physical demands of glassing and stalking sheep across near-vertical basins. Hunters serious about a DIY approach should use available mapping tools — including HuntPilot's public land and terrain overlays — to identify access routes, elevation bands, and drainage systems worth scouting well before the season, since the terrain here punishes hunters who arrive unprepared or unfamiliar with the ground.

How to Apply

The license fee requirement is critical and easy to overlook — both residents and nonresidents must hold a qualifying hunting license before their sheep application will even be accepted, in addition to the separate application and point fees.

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 S09? Unit S09 covers extreme vertical terrain in the Sangre de Cristo high country, ranging from 6,993 feet to 14,249 feet in elevation. The ground is steep and rugged throughout, with very little flat terrain except at valley bottoms and ridge tops. Hunters should expect a physically demanding hunt regardless of where in the unit they focus their effort.

What is harvest success like in Unit S09? Harvest success has varied widely in recent years, ranging from a low of 25% in 2020 (a very small sample of 4 hunters) up to 73% in 2025. The past two seasons (2024 and 2025) have shown notably higher success than the 2021–2022 stretch, but hunters should prepare for a physically demanding hunt with no guarantee of success in any given year.

How big are the bighorn sheep in Unit S09? Trophy record data for the counties overlapping this unit shows a limited history of formally recorded record-book rams. This doesn't rule out mature rams being present in this rugged, lightly-hunted wilderness terrain, but hunters shouldn't expect S09 to carry a deep trophy pedigree based on the available data.

Is Unit S09 worth applying for? For hunters with meaningful point equity who want a genuine, difficult, high-country sheep hunt, yes — S09 offers a real wilderness experience with 63% public land and 15% wilderness designation. However, tag numbers are extremely limited and shrinking in some categories, and this should be viewed as a bucket-list-caliber hunt requiring serious physical preparation rather than a numbers-driven trophy pursuit.

Do I need a guide to hunt Unit S09 as a nonresident? Colorado does not require nonresidents to hire a guide in wilderness areas, unlike some other western states. However, given the extreme terrain and the accounts of hunters who have struggled with a fully DIY approach, many hunters choose to hire local guiding assistance or bring pack stock support to handle the physical demands of this hunt.