Rocky Mountain Bighorn Sheep Hunting in Idaho Unit 37: Lemhi Region

This population occurs on the Lost River Range in GMUs 37, 50, and 51. Bighorn sheep are observed consistently throughout this PMU. The Lost River Range is relatively dry and availability of surface water is sporadic. Thus, further refinement of habita...

Unit 37: Lemhi Region

Scores


Scores
User Scores
Ease of Drawing
2
 
2
Success
94
 
94
Trophy Potential
22
 
22
Public Access
91
 
91
Ease of Terrain
85
 
85
Room to Breathe
100
 
100
Opportunity
41
 
41
Convenience
1
 
1
Ease of Effort
100
 
100
76
HuntScore

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County

Custer, Lemhi

Size

703 Square Miles (450,013 Acres)

Land Ownership

10% Private, 90% Public, 38% USFS, 49% BLM, 4% Wilderness

Latitude/Longitude

44.3838, -113.8603

Amenities

There are 0 hospitals, 0 hotels, 1 campgrounds, and 0 grocery stores within a 20 mile radius.

Rocky Mountain Bighorn Sheep Notes


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This population occurs on the Lost River Range in GMUs 37, 50, and 51. Although USFS manages most of the bighorn range, there is some use of BLM-managed lands. The area is typified by dry coniferous forest-grassland and alpine habitats with low motorized road or trail densities. Access into most occupied bighorn sheep habitats is limited.

Bighorn sheep primarily summer at higher elevations in alpine ranges. Winter ranges extend from the lower elevation foothills to mountain ridges >11,000 feet and include multiple habitat types. Bighorn sheep are observed consistently throughout this PMU. The Lost River Range is relatively dry and availability of surface water is sporadic.

The USFS has developed some water sources (guzzlers) to address potentially limited natural water distribution. With current available information and considering the potential of increased disease risk, IDFG currently discourages the development of water sources (see habitat section). Within current distribution, modeled habitat occupies approximately 678 km2 , which could support approximately 1,290 bighorn sheep (assuming all habitat is suitable year-round and relatively high densities of 1.9/km2 ). Point agreement with the habitat model is low (~60%), indicating sheep have spent significant time outside of predicted habitat areas.

Conversely, there could be greater limitation based on specific habitat needs such as lambing and wintering habitat. Thus, further refinement of habitat models and available habitat will likely reduce the estimate of potential population size. Regardless, the PMU can sustain more bighorn sheep and IDFG will continue to manage for an increase in population in the PMU

HuntScore Tip

The quality of your hunt depends on you. Preseason scouting, preparation for the environmental conditions, and physical conditioning are important factors. The success and quality of your hunt will likely increase with the distance from your vehicle and roads.

Photos and Terrain Notes


Rocky-mountain-bighorn-sheep Drawing Stats (2021)


Total Quota
10
Licenses Drawn
10
Licenses Surplus
0
Resident Quota
10
Nonresident Quota
0
Landowner Quota
0
Youth Quota
0
1.7%
Overall Unit
1st Choice Draw Odds
Choose a hunt below to take a deeper dive into quotas, drawing odds, drawing trends, and harvest data.
Stats Apply For Sex Manner Season Type Draw Odds HuntScore Notes
5018
M
ANY
C
1.7%
78 See controlled hunt area descriptions. This hunt includes other units or parts of other units.
5019
M
ANY
C
1.7%
78 See controlled hunt area descriptions. This hunt includes other units or parts of other units.

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Rocky-mountain-bighorn-sheep Harvest Stats (2020)


Total Hunters
10
Total Harvest
9
Harvest Male
9
Harvest Female
0
90%
Average Success
Manner Season Type Sex Hunters Harvest Male Female Youth
ALL
ALL
N/A 10 9
9
0
0
ANY
C
M
5 4
4
0
0
ANY
C
M
5 5
5
0
0
HuntScore Tip: Ever hunt a unit with a 100% success rate and not see any animals? If you're nodding your head to any of these scenarios then you're one of the people who knows that statistics are a good guide, but they aren't a guarantee.

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Weather Insights


Weather can vary by elevation. See how weather varies by elevation within a unit by selecting an elevation range. Elevation ranges are based on weather stations in or near the unit. Not all weather elements are available within the unit.

Average Temps

Use temperature ranges to plan and prepare for your hunt. Large swings indicate a good layering system should be used. Be sure to make note of the extreme temperatures as these often pose the greatest risk to hunters. If you plan on hunting in higher elevation, as a rule of thumb, expect the tempture to decrease roughly 5° for every 1000' in elevation gain.

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