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Salmon Elk Zone
Idaho GMU 21A
Strategic hunting data, boundary maps, and 2026 season dates for Game Management Unit 21A.
Updated for 2026 Season
TerrainRugged Mountains
OwnershipLand breakdown unavailable
Access DifficultySee IDFG
Key SpeciesBlack Bear
Season TypeGeneral & Controlled
ZoneSalmon
Unit 21A Overview
Idaho Game Management Unit 21A (GMU 21A) is a premier hunting destination located in the Salmon Elk Zone. Home to Black Bear, Deer, Elk, Gray Wolf, Mountain Lion, White-tailed Deer, this unit features high-elevation rugged terrain, requiring physical preparation and optics for cross-canyon spotting. Public-land breakdown for Unit 21A is not yet integrated into our database — verify acreage with Idaho Fish and Game's Hunt Planner before scouting.
Application Strategy
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Maps
Tactics
2026 Regular Schedule
Seasons in Unit 21A typically begin in Oct 10.
There are 17 confirmed seasons in Unit 21A.
View Full ScheduleHarvest Data Coming Soon
We're currently digitizing 2023-2025 harvest reports and draw odds for Unit 21A. Check back shortly for deep-dive analytics.
Data Pipeline Active
Unit 21A Boundary
That portion of LEMHI COUNTY within the drainage of the east side of the Salmon River downstream from and including the Carmen Creek drainage to the town of North Fork, and that portion of the North Fork of the Salmon River drainage east of U.S. 93 between the town of North Fork and the Idaho-Montana State line.
Salmon Zone Context
East-Central Idaho — Salmon River Country
The Salmon zone covers the high-elevation drainages east of the Salmon River, with broad alpine basins, sage-and-fir mosaic terrain, and good migration corridors connecting summer and winter range. It's a balance of remote feel and reasonable access — a frequent first choice for non-wilderness DIY hunters.
Salmon, Challis, and Mackay are the staging towns. Snow can close upper roads any time after mid-October.
See all units in the Salmon ZoneCommon Questions About Unit 21A
Where is Idaho GMU 21A?
Unit 21A sits in the Salmon Elk Zone. The landscape is predominantly rugged mountains, requiring appropriate gear and preparation.
What species can I hunt in Unit 21A?
Unit 21A has open seasons for Deer, White-tailed Deer, Elk, Black Bear, Mountain Lion. Confirm season dates and weapon legality with Idaho Fish and Game before applying or buying tags.
Are offline maps useful in GMU 21A?
Yes. Cell service is often limited or non-existent in the core hunting areas of Unit 21A. Having saved offline maps is critical for safety and staying on legal ground.
Is Unit 21A mostly public land?
Unit 21A is approximately 88.7% public (mostly public). That gives DIY hunters meaningful range for scouting and stalking without trespass risk.
Land Ownership Breakdown
USFS73.78%
BLM14.14%
Private11.13%
State0.47%
Other0.28%
Source: IDFG Hunt Planner · Inside Idaho.
Other Units in the Salmon Zone
Season and regulatory information sourced from Idaho Fish and Game proclamations. Land ownership data compiled from public records. Maps generated by Roam Idaho.
Terrain Breakdown
Key Insight
Predominantly Rugged Mountains
Prepare for steep elevation and spot-and-stalk tactics.
See terrain map
Land Access
Access Intel
Mostly Public
Great for DIY roaming.
Land Ownership Map
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Species Guides
Hunted in Unit 21A. Tap a species for full strategy.
Pro Tip
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