Unit 21A Elk Hunting, Idaho
Idaho hunting unit · Salmon Elk Zone · 249 sq mi
General season — resident tags over the counter
Residents buy general elk tags over the counter — no draw, no points. General elk is sold by zone: Unit 21A is in the Salmon Elk Zone, whose A and B tags carry different seasons. Nonresident general tags are allocated by random draw. It also has 1 controlled hunt, drawn by pure random draw with no points — resident odds fair odds. The zone's B tag is capped: a limited number, sold first-come, first-served.
What hunting Unit 21A is like
Unit 21A sits in steep and broken country, with elevations running from valley bottoms near 3,600 feet up to peaks above 10,300 feet, and a mean slope over 24 degrees that keeps most of the unit as foot-and-glass hunting. Lower elevations mix sagebrush, conifer, grass and meadow with a little riparian cover, while mid and higher elevations turn heavily to conifer timber, with grass and meadow and sagebrush filling in the rest. Much of the unit falls inside the Salmon-Challis National Forest, and any designated wilderness within it is closed to motorized travel, which pushes hunting pressure toward pack-in effort and away from vehicle access.
About 89 percent of the unit, roughly 220 square miles, is generally open to public hunting across National Forest, BLM and Idaho state endowment land, though endowment parcels can be posted closed or leased and should not be assumed open without checking. The remaining 11 percent is private and requires written permission. That much public ground gives a hunter room to work, but the steep, broken terrain means covering it is never easy or guaranteed.
Elk tags here run through the Salmon Elk Zone, which also covers Units 21, 28 and 36B. Residents buy general A or B tags over the counter, while nonresidents enter a random draw in which they apply for a specific zone tag — A or B — chosen at the time of application, not after the draw. The B tag is capped and sold first-come, first-served once the draw window opens. A controlled antlerless hunt fills out the calendar for hunters willing to enter the pure random draw for a limited number of tags.
General-season elk (2026)
General elk tags are sold by zone. Unit 21A is in the Salmon Elk Zone (Units 21, 21A, 28 and 36B); a hunter chooses its A tag or its B tag, and each carries its own seasons. The windows below are the ones valid in Unit 21A. Residents buy the tag over the counter; nonresident general tags are allocated by random draw.
| Season | Dates | Legal elk | Rut phase |
|---|---|---|---|
| A tag · Any weapon Valid area: Portion of Unit 21A | August 1 – October 31 | Antlerless only | Late Summer / Velvet, Pre-Rut Transition, Rut Onset, Primary Rut, Late Rut / Early Post-Rut, Post-Rut Recovery |
| A tag · Archery Valid area: Units 21, 21A, 36B | August 30 – September 30 | Any elk | Pre-Rut Transition, Rut Onset, Primary Rut |
| B tag · Any weapon Valid area: Units 21, 21A, 28 and 36B | October 15 – November 8 | Antlered only | Late Rut / Early Post-Rut, Post-Rut Recovery, Migration Transition |
A tag · Any weapon · August 1 – October 31
This long antlerless season runs from the first of August through the end of October, spanning everything from the velvet period through post-rut recovery, and it calls for a hunter willing to cover ground across a wide stretch of the calendar. Only a portion of Unit 21A is open to this A tag, so checking the valid boundary matters before setting out. Early on, working the sagebrush and grass meadows at lower elevations near riparian pockets can put a hunter among cows and calves, while conifer cover at mid and high elevations holds animals as the season wears into fall. By October, snowfall around 1.8 inches and lows near 28°F start to push elk activity, and a hunter should be ready for cooling, wetter conditions in the field. This is an antlerless-only tag, so the focus stays on cow and calf elk throughout.
A tag · Archery · August 30 – September 30
Archery season opens August 30 and runs through September 30, covering the tail end of the pre-rut transition into the heart of the primary rut, and it is valid across Units 21, 21A and 36B under the A archery tag. In the first week or two, bulls are just finishing stripping velvet and haven't moved far from summer range, so sitting water sources or glassing open pockets for a spot-and-stalk approach can pay off before things heat up. As the season pushes into rut onset and then primary rut, bulls become more active and more vocal, and the steep, broken terrain rewards a hunter who can get high and glass conifer edges and meadow openings. This tag allows any elk, giving flexibility to fill on a bull or a cow as the rut unfolds. Timber cover at mid and higher elevations offers the best staging ground for still-hunting or calling as bulls respond to the rut.
B tag · Any weapon · October 15 – November 8
The B tag any-weapon season opens October 15 and runs to November 8, covering the tail of the late rut, the post-rut recovery period, and the start of migration transition, valid across Units 21, 21A, 28 and 36B. Bulls are settling out of rut behavior and beginning to drift toward winter range, so still-hunting timbered slopes and glassing travel routes between feeding and cover pays off more than calling at this point. Snowfall picks up through the season, from around 1.8 inches in October to nearly 12 inches by November, with lows dropping to near 19°F, and that shift in weather can trigger movement as elk start shifting toward lower ground. This tag is antlered-only, so a hunter needs to be sure of a legal bull before committing to a shot in the steep, broken cover. Working the edges between conifer timber and open grass or sagebrush at mid-elevations gives the best chance of catching bulls on the move.
Controlled elk hunts (2026)
Controlled hunts have a limited number of tags and are drawn by pure random draw — Idaho uses no points, so years of applying do not improve the odds. First choices are drawn before second choices. A hunt marked as covering part of Unit 21A is valid only in its own hunt area.
| Season | Dates | Legal elk | Resident draw | Rut phase |
|---|---|---|---|---|
| Controlled hunt 21A · Any weapon | November 15 – December 15 | Antlerless only | Fair odds | Migration Transition, Winter Range |
Resident draw is a band in words from the 2026 first-choice results: good, fair, long or very long odds. It is not a published percentage, and nonresident odds differ. Youth-only hunts are shown without a band.
Controlled hunt 21A · Any weapon · November 15 – December 15
This controlled antlerless hunt runs November 15 through December 15, squarely in the migration transition and winter range phases, and it draws under a fair-odds band for resident first-choice applicants, with a limited number of tags issued by pure random draw. By this point in the year, elk are shifting toward lower ground and settling into winter range, and heavy snowfall — climbing from around 11.8 inches in November to roughly 24.6 inches in December, with lows dropping to near 11°F — pushes animals out of the high timber and into more accessible country. A hunter filling this antlerless tag should focus on lower-elevation sagebrush, grass and meadow areas where cows and calves concentrate once deep snow closes off the high country. Foot access remains demanding given the unit's steep and broken character, but the migration and cold weather work in a hunter's favor by concentrating elk in fewer, lower places.</br>
Terrain & elevation
- Elevation
- 3,600–10,300 ft, typically around 6,000 ft
- Slope breakdown
- 12% gentle · 34% moderate · 53% steep · 2% rugged
- Ground you can count on
- ~220 sq mi
- National forests
- Salmon-Challis National Forest
Habitat & cover
What grows here, by elevation. Each band adds to 100% on its own — these are shares of that band, not of the unit.
Lower elevations
- Sagebrush36%
- Conifer28%
- Grass and meadow26%
- Other cover8%
- Riparian2%
Mid elevations
- Conifer74%
- Sagebrush14%
- Grass and meadow12%
Higher elevations
- Conifer72%
- Grass and meadow14%
- Sagebrush10%
- Other cover4%
Cover classes from the USGS National Land Cover Database. “Other cover” is the remainder — bare ground, water, agriculture and developed land.
Land & access
About 89% of Unit 21A is public land a hunter can generally count on — National Forest, BLM and Idaho state endowment land.
- National Forest74%
- BLM14%
- Idaho state endowment land<1%
- Private11%
Idaho state endowment land is generally open to hunting unless posted closed or leased — check the parcel before planning around it.
Fall weather
- August — highs around 73°F, lows around 44°F
- September — highs around 63°F, lows around 37°F, about 0.2 in of snowfall
- October — highs around 48°F, lows around 28°F, about 1.8 in of snowfall
- November — highs around 34°F, lows around 19°F, about 11.8 in of snowfall
- December — highs around 26°F, lows around 11°F, about 24.6 in of snowfall
Unit 21A elk hunting FAQ
Can a resident buy an elk tag for Unit 21A over the counter?
Yes. Residents can buy a general A or B tag for the Salmon Elk Zone over the counter without applying or entering a draw. The choice between A and B depends on which season and weapon a hunter wants, since the two tags carry different dates and legal animals.
How do nonresidents get a general elk tag for Unit 21A?
Nonresidents enter a random draw for the Salmon Elk Zone's general tags, and they apply for a specific tag — either the A tag or the B tag — at the time of application. The tag is not chosen after the draw; it is picked as part of the application itself.
How hard is it to draw the controlled hunt in Unit 21A?
Controlled hunt 21A, an antlerless any-weapon hunt running November 15 through December 15, carries a fair-odds band for resident first-choice applicants in the random draw. It is a pure random draw with a limited number of tags, and no points of any kind apply to Idaho elk hunting.
Which elk zone and tags cover Unit 21A?
Unit 21A falls in the Salmon Elk Zone alongside Units 21, 28 and 36B. General tags in this zone are sold as an A tag or a B tag, each with its own season and legal animal, and a hunter chooses one when buying or applying.
How much of Unit 21A is public land a hunter can count on?
About 89 percent of the unit, roughly 220 square miles, is generally open to public hunting across National Forest, BLM and Idaho state endowment land. The remaining private ground, about 11 percent of the unit, requires written permission to access.
Data sources & methodology
- Idaho Fish and Game — Idaho Big Game 2026 Seasons & Rules — general and controlled season dates, legal animals and the brochure's unit notes
- Idaho Fish and Game — Idaho Hunt Planner — unit boundaries, the national forests and wilderness areas in each unit, and controlled-hunt drawing results behind the odds bands
- Idaho Fish and Game — 2026 Nonresident General Tags and Tags Allocated to Outfitters — which general elk zone tags are capped
- USGS / MRLC — National Land Cover Database — habitat and cover classes by elevation band
- USGS PAD-US — Protected Areas Database of the United States — land ownership and access
- Daymet daily climate, 1991–2020 (Oak Ridge National Laboratory) — fall weather
- National Interagency Fire Center — wildfire perimeters — recent fires, their size and where they burned
Controlled-hunt draw difficulty is a qualitative band from resident first-choice results, not published odds. Land shares are separate, non-overlapping categories. Confirm current dates and rules in the Idaho Big Game Seasons & Rules brochure before you hunt. Unit data last updated September 29, 2026.