Unit 20A

Middle Fork

High-country Salmon River breaks with steep canyons, alpine basins, and scattered meadows above timberline.

Hunter's Brief

Unit 20A encompasses steep, high-elevation terrain in the Salmon River drainage spanning from deep canyon country to alpine ridges. Access is limited to backcountry conditions—over 700 miles of roads exist but most require pack stock or significant foot travel. Water is available through numerous springs, creeks, and high-country lakes, though reliable sources require local knowledge. This is remote, challenging country best suited for physically prepared hunters comfortable navigating complex terrain and managing logistics in rugged, mountainous environment.

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Terrain Complexity
8
8/10
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Unit Area
755 mi²
Moderate
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Public Land
100%
Most
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Access
1.0 mi/mi²
Fair
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Topography
65% mountains
Steep
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Forest
38% cover
Moderate
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Water
0.3% area
Moderate

Terrain Deep Dive

Landmarks & Navigation

Key navigation features include Wolf Fang Peak and the distinctive Wolf Fangs ridge system for north-side orientation, while Mosquito Peak and Cold Mountain provide reference points for south-slope navigation. Chamberlain Basin offers a major alpine staging area above timberline. Profile Lake, Fish Lake, and Stoddard Lake serve as reliable high-country water sources and landmark clusters for hunters planning multi-day camps.

Lower in the drainages, named bars along the Salmon River—Richardson Bar, Haney Bar, Mackay Bar—mark river access points and potential basecamp locations. Named creeks including Pilot Creek, Raines Creek, and South Fork Salmon River drainage provide logical travel corridors and water navigation through canyon country.

Elevation & Habitat

The unit transitions from low-elevation river canyon grasslands and scattered timber along the Salmon River through mid-elevation sagebrush and mixed conifer slopes to high-country alpine terrain with sparse vegetation above 8,000 feet. Dense pockets of timber—primarily Douglas fir and lodgepole pine—provide cover on north-facing slopes and in protected drainages, while open ridges and windswept peaks offer glassing terrain. The median elevation of 6,500 feet places most hunting in transition zones where heavy timber gives way to meadows and open country.

Multiple named flats—White Bird Meadow, Wapiti Meadows, Moose Jaw Meadow—indicate scattered parkland areas interspersed with forest that create early-season and rut hunting opportunities.

Elevation Range (ft)?
2,1529,331
02,0004,0006,0008,00010,000
Median: 6,493 ft
Elevation Bands
8,000–9,500 ft
6%
6,500–8,000 ft
44%
5,000–6,500 ft
32%
Below 5,000 ft
18%

Access & Pressure

With 730 miles of roads but no highway access and a terrain complexity rating of 8.5/10, this unit operates on genuine backcountry logistics. Access is primarily via foot, horse, or pack stock from lower elevations; the 'fair' accessibility rating reflects that trailheads exist but significant physical effort is required. Most hunters access via the Salmon River corridor or established pack trails from lower drainages.

The combination of vast size, steep terrain, and backcountry-only access means pressure is naturally dispersed, though organized parties or outfitted hunters on established trails can concentrate near known camps. Solitude is available for those willing to push beyond established travel corridors.

Boundaries & Context

Unit 20A occupies the south side of the Salmon River drainage in Idaho and Valley counties, encompassing steep canyon and mountain terrain from the river corridor up through high alpine country. The unit's vast scale spans from approximately 2,100 feet elevation along river bars to over 9,300 feet on the highest ridges, creating significant vertical relief. Namesake features like Mackay Bar along the Salmon River anchor the lower boundary, while ridgelines including Wolf Fangs, Sheepeater Ridge, and Horse Heaven Ridge define the upper country.

The terrain is dominated by backcountry access—this is wilderness-character country requiring pack animals or extended foot travel to reach hunting areas.

Land Cover Breakdown?
Mountains (forested)
26%
Mountains (open)
39%
Plains (forested)
12%
Plains (open)
22%
Water
0%

Water & Drainages

Despite the 'limited' water designation, this unit actually contains numerous water sources across different elevations—a critical asset given the terrain. The Salmon River itself flows through the western boundary, while the South Fork Salmon River provides a major drainage corridor through the unit's interior. High-country lakes including Twin Lakes, Cutthroat Lake, and Swamp Angel Lake store reliable water in alpine terrain.

Named springs—Table Spring, Elk Spring, Mosquito Springs, Soldier Spring, and others—dot the mid-elevation country, though their flow varies seasonally. Multiple creeks including Fivemile Creek, Quartz Spring Creek, and Ruff Creek provide consistent water along established travel corridors, making water planning more feasible than the limited designation initially suggests.

Hunting Strategy

Elk and mule deer represent the primary species likely in this unit, with elk distributed across elevation gradients—lower country in fall, higher basins and ridges during opening and rut. The steep terrain rewards glassing from named ridges and open peaks early in seasons before heavy pressure moves animals into timber. Multi-day hunts are standard; establish base camps near reliable springs or lakes, then glass and hunt from established ridges.

Early season offers optics-heavy hunting from open country; as season progresses, focus on timber edges and drainages where animals concentrate. Late-season hunting often requires dropping to lower river-bottom country as high ridges become inhospitable. Plan logistics for 5-7 day trips minimum; pack animals significantly expand effective hunting range versus foot-only access.