Montana Unit 680 Bighorn Sheep Hunting Guide

Montana Unit 680 stands out as one of the state's more productive bighorn sheep units, backed by a public land base that covers 63% of its 620,325 acres and a harvest track record that consistently outperforms typical Western sheep hunting expectations. For hunters serious about pursuing bighorn sheep in Montana, Unit 680 deserves a close look — but with tag numbers shrinking fast, the window to draw one of these coveted permits is narrowing every year.

This unit sits at elevations ranging from 2,260 to 4,644 feet, notably lower and gentler than many alpine sheep units found elsewhere in the Rockies. With no designated wilderness acreage in the unit, access tends to be more straightforward than the pack-in, high-alpine basins typical of sheep country in Wyoming or Colorado. That combination of accessible terrain and solid public land ownership makes Unit 680 a unit hunters actually talk about — and one where a drawn tag translates into a realistic chance at a mature ram rather than just a long, grueling season with little payoff.

HuntPilot Analysis: Is Unit 680 Worth Applying For?

The short answer: yes, if a hunter can stomach the long odds and the reality that this opportunity is shrinking. Unit 680's harvest numbers tell a compelling story. In 2024, 38 hunters harvested 26 rams for a 68% success rate — an exceptional number for any bighorn sheep hunt anywhere in the West. That wasn't a one-year fluke either. Success rates have held remarkably steady: 62% in 2023, 58% in 2022, and 64% in 2021. Across four seasons, hunters who draw a tag in this unit are converting on more than six out of every ten attempts, which places Unit 680 well above the success rates most sheep hunters experience nationally.

The terrain data reinforces why. At elevations under 4,650 feet and without wilderness designation, rams here are accessible to a broader range of hunters — including older or less mobile applicants who might struggle with the technical alpine terrain found in higher, more rugged units. Public land access at 63% means the majority of the unit is open to hunters without needing to negotiate private land access, which is a real advantage for do-it-yourself sheep hunters.

The trophy picture adds further weight to the case for applying. The counties overlapping Unit 680 carry an extensive history of trophy-class ram production, indicating this isn't just a unit where hunters fill a tag — it's a unit capable of producing genuinely notable rams with real horn mass and length. That combination of high success rates and a strong trophy pedigree is rare; most units offer one or the other, not both.

The catch is tag availability, and it's a serious one. Quota trends across the unit's hunt types show dramatic cuts heading into 2026. The 680-20 and 680-20-A hunts held steady at 10 tags for both 2025 and 2026, following a drop from 25 tags in 2024 — already a 60% reduction. But the 680-30 and 680-30-A hunts were cut from 30 tags in 2024 to just 5 in 2025, and then slashed again to a single tag apiece for 2026 — an 80% reduction in that final year alone. The 680-31 and 680-31-A hunts followed an even steeper trajectory: 30 tags in 2024, down to 15 in 2025, then cut to a single tag each for 2026, a 93% reduction from the prior year.

This is a unit in transition. Whatever biological or management rationale is driving these quota reductions, the practical effect for hunters is that the already-tough draw for Unit 680 sheep tags is becoming dramatically more competitive. Hunters chasing this unit should not assume that historical draw performance will repeat itself going forward. For current odds by hunt type and residency, check the HuntPilot unit page, since these figures shift meaningfully year to year and the recent quota cuts make historical comparisons unreliable.

Harvest Success Rates

Unit 680's harvest data represents some of the more consistent success numbers available for Montana bighorn sheep hunting. Over the four most recent seasons with available data:

• 2024: 38 hunters, 26 harvested, 68% success
• 2023: 66 hunters, 41 harvested, 62% success
• 2022: 84 hunters, 49 harvested, 58% success
• 2021: 72 hunters, 46 harvested, 64% success

What stands out is not just the high success percentages but their consistency — all four years land in a tight band between 58% and 68%. That's meaningful for hunters weighing the investment of a limited-entry sheep tag, since bighorn hunts elsewhere can carry far more volatility year to year. A hunter who draws a Unit 680 tag has historically had better-than-even odds of tagging a ram, and in the best recent year, better than two-in-three odds.

It's worth noting that hunter numbers have declined across this same period — from 84 hunters in 2022 down to just 38 in 2024 — which tracks with the quota reductions detailed above. Fewer tags issued naturally means fewer hunters afield, but the success rate held up (and even improved) as the hunter pool shrank, suggesting the ram population and huntable terrain haven't degraded even as tag numbers have.

Trophy Quality

The counties overlapping Unit 680 carry an extensive history of producing trophy-class bighorn rams. This is a significant data point for hunters evaluating where to invest limited points or apply for a coveted sheep tag, since trophy potential varies enormously between units even within the same state.

It's important to understand how this data works: trophy records are logged at the county level, not the specific hunt unit, so this trophy history is shared with any other units that overlap the same counties. Still, an "extensive" trophy history is a strong qualitative signal — it means this general area has repeatedly produced rams that reach elite record-book caliber, not just occasional entries. Combined with the high harvest success rates documented above, Unit 680 offers hunters a genuine shot at both filling a tag and encountering a ram with serious horn growth.

Access & Terrain

Unit 680 covers 620,325 total acres, with 63% held in public ownership — a solid majority that gives DIY hunters real room to operate without needing extensive private land arrangements. The remaining 37% is private, so hunters should still expect some parcels of the unit to be off-limits without permission, but the public land base is more than sufficient to support a full season of scouting and hunting.

Elevation in the unit ranges from 2,260 feet up to 4,644 feet — a comparatively low and gentle profile for bighorn sheep country. Many Western sheep units push well above 8,000 or even 10,000 feet, demanding technical alpine scrambling and multi-day pack trips into wilderness basins. Unit 680's lower elevation band means terrain here tends to be more rolling breaks and rimrock country rather than sheer alpine cliffs, which several hunters have specifically sought out as a more physically manageable option for older or less mobile applicants.

The unit carries no wilderness designation (0% wilderness acreage), which is significant for access planning. Without wilderness restrictions, hunters can typically use vehicles and mechanized access closer to hunting areas than in units where motorized access ends at a wilderness boundary, making scouting trips and game retrieval considerably more practical. Hunters should still expect to do real footwork once in the field — sheep habitat by nature involves steep, broken terrain even at lower elevations — but the absence of long wilderness pack-ins is a meaningful advantage for logistics.

For hunters mapping out scouting routes, HuntPilot's public land overlay tools can help identify exactly where the 63% public ownership sits relative to access points, letting hunters build a scouting plan around legally accessible ground before setting foot in the unit.

How to Apply

The fee structure differs significantly by residency:

Note that both resident and nonresident applicants must hold a qualifying license before applying — this license fee is separate from and in addition to the application fee and point fee, and it's a cost that's easy to overlook when budgeting for a sheep application. Given the steep quota reductions detailed above for several of Unit 680's hunt types heading into 2026, hunters should apply with realistic expectations and check the HuntPilot unit page or the Montana state page (huntpilot.ai/states/mt) for current draw odds before committing point fees.

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

Frequently Asked Questions

What is the terrain like in Montana Unit 680? Unit 680 features lower-elevation terrain compared to typical alpine sheep country, ranging from 2,260 to 4,644 feet in elevation. There's no designated wilderness in the unit, which means access tends to be less demanding than pack-in, high-alpine units elsewhere in the Rockies. Expect rolling breaks and rugged rimrock-type terrain rather than sheer alpine cliffs, with 63% of the unit's 620,325 acres held in public ownership for hunter access.

What is harvest success like in Unit 680 for bighorn sheep? Harvest success has been strong and consistent in recent years: 68% in 2024, 62% in 2023, 58% in 2022, and 64% in 2021. These success rates are notably high for bighorn sheep hunting, meaning hunters who draw a tag in this unit have historically had a good chance of filling it.

How big are the bighorn sheep in Unit 680? The counties overlapping Unit 680 have an extensive history of producing trophy-class rams, according to available trophy records. Because these records are tracked at the county level and shared across overlapping units, this reflects a broader regional pattern of quality ram production rather than a unit-exact guarantee, but it's a strong qualitative indicator of trophy potential in this area.

Is Unit 680 worth applying for? Based on the data, yes — Unit 680 combines above-average harvest success, a strong regional trophy history, and comparatively accessible lower-elevation terrain with majority public land ownership. The major caveat is tag availability: several of the unit's hunt types have seen severe quota cuts heading into 2026, with some hunt types reduced by as much as 93% from 2025 levels. Hunters should check current draw odds on the HuntPilot unit page before applying, since the numbers behind this unit's past success may not translate to similar tag availability going forward.

What does it cost to apply for a bighorn sheep tag in Unit 680?

Fees and deadlines change every draw cycle, so the current figures live on HuntPilot's Montana page at /states/mt rather than here.