Idaho Elk Mule Deer Mountain Goat

Unit 18

Idaho Hunting Guide — Elk, Mule Deer, Mountain Goat

Elk in Idaho Unit 18 are managed by the Idaho Department of Fish and Game. Tag numbers, season dates, and weapon structure are set each year in the IDFG big game rules. Applicants should verify current hunt numbers and quotas in the IDFG Hunt Planner before applying.

View Draw Odds Idaho Hunting Guide

Elk Hunting in Unit 18

Where to Find Elk in Unit 18

Elk distribution in Unit 18 follows the mix of timbered drainages, mountain basins, and transition habitat typical of the hunt area. Glassing at first and last light and paying attention to thermals are key. Cross-reference the IDFG Hunt Planner boundary viewer with public-land layers before committing to an access plan.

How to Hunt Unit 18 Elk

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Elk Success Rates

Rifle70%

Harvest totals, hunter days, and success percentages for Unit 18 elk hunts are published in the IDFG Hunt Planner statistics tool. Results vary by weapon type, season, and year — review the most recent stats before the draw.

Elk Draw Odds

Season	Tags	Applicants	Draw %	Pts Req
Rifle— Controlled	243	1,046	23.2%	0

Data from 2025 draw results. Resident odds shown.

Open in Draw Odds Engine

Unit 18 elk tags are allocated through the IDFG controlled hunt draw. Resident and nonresident odds can be reviewed by year and hunt number in the IDFG Hunt Planner. Check multiple weapon seasons before applying — odds can vary significantly between rifle, muzzleloader, and archery hunts.

Mule Deer Hunting in Unit 18

Unit 18 covers the Lemhi Range and Pahsimeroi Valley in east-central Idaho — classic high-desert-to-alpine mule deer country with dramatic elevation transitions from the valley floor to 10,000-foot peaks. General season tags provide broad access, and the unit holds a good population of migratory mule deer bucks that move from high summer range down to wintering grounds on the valley benches during the October rifle season.

Where to Find Mule Deer in Unit 18

Mule deer in Unit 18 use a classic elevational migration pattern — high alpine basins in summer, mid-elevation benches and draws in early fall, and the Pahsimeroi Valley sagebrush benches in late fall and winter.

Lemhi Range High Country (Early Season)

During the early archery season in late August and September, mature bucks are in the high basins and cirques of the Lemhi Range above 8,500 feet. Glass from ridge-top vantage points into the open rocky terrain. Bucks are often visible on the north-facing slopes in the morning before moving into the shadow basins to feed on forbs.

Mid-Elevation Draws and Benches (October)

The October rifle season catches bucks in transition between summer and winter range. Focus on the aspen and mountain mahogany draws on the east slopes of the Lemhis between 6,500 and 8,500 feet. These transition zones are where deer concentrate during migration and the rut.

Pahsimeroi Valley Benches (Late Season)

Late-season deer funnel onto the Pahsimeroi Valley sagebrush benches and lower canyon edges as snow pushes them off the high country. Glass the sage flats and rocky breaks on the valley margins during the late rifle or muzzleloader seasons for migratory bucks.

How to Hunt Unit 18 Mule Deer

Unit 18 rewards classic high-country glassing tactics in the early season and methodical migration-route hunting in October and November.

High Country Spot-and-Stalk

We recommend investing optics budget heavily for Unit 18. Cover ground from high glassing vantage points in the Lemhis during the early season — a quality 15x or 18x tripod-mounted binocular is the most effective tool. Spot a buck from a half-mile or more and plan a stalk using the rocky terrain for concealment.

Migration Pinch Point Ambush

During October, identify the saddles and draws that deer use as migration corridors from the Lemhi high country down to the Pahsimeroi. Set up a ground blind or natural hide on these routes and allow deer to move to you rather than pursuing them. This strategy is especially effective for archery hunters in the transition zones.

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Mule Deer Success Rates

Unit 18 general season mule deer success rates typically run 20–35% depending on deer numbers following winter severity. The Lemhi Range migration pattern concentrates bucks in predictable corridors during October — hunters who identify these routes and are willing to glass from elevation consistently outperform those hunting the valley roads.

Mule Deer Draw Odds

Season	Tags	Applicants	Draw %	Pts Req
Rifle— Controlled	113	464	24.4%	0

Data from 2025 draw results. Resident odds shown.

Open in Draw Odds Engine

Most Unit 18 mule deer opportunity is available on general season tags purchasable OTC. Some late-season or antler-restriction hunts may require a controlled hunt draw — check IDFG Hunt Planner for current designations. The unit does not typically require preference point accumulation for most hunters.

Mountain Goat Hunting in Unit 18

Unit 18 offers one of Idaho's mountain goat opportunities in the steep cliffs and alpine basins of the Selway-Bitterroot country. We treat this as a true once-in-a-lifetime (OIAL) tag under Idaho law. The hunt is brutally physical and the tag is rare — drawn hunters should plan the hunt of a lifetime. Tags are drawn through Idaho's pure random lottery.

Where to Find Mountain Goats in Unit 18

Goats in Unit 18 live on the steep cliff faces and alpine benches of the Selway-Bitterroot.

Cliff Faces

Sheer cliff bands above 7,500 feet are prime goat country — glass systematically.

Alpine Benches

Small grass benches between cliff bands are feeding areas.

Mineral Licks

Known mineral licks concentrate goats seasonally — IDFG biologists can share general locations.

How to Hunt Mountain Goats in Unit 18

This is a high-stakes, physical hunt. Prepare for the worst terrain Idaho offers.

Pack-In Strategy

Plan a 5-10 day backpack hunt with a base camp at the edge of goat country.

Glass from Opposing Ridges

Glass cliff faces from across the drainage to avoid spooking goats off the mountain.

Choose the Right Goat

Billies are harder to distinguish from nannies than most species — review ID resources carefully before the hunt and take ethical shots only.

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Mountain Goat Success Rates

Unit 18 goat success typically runs 60-80%. Physically capable hunters who put in the days consistently tag goats; the hunt breaks down for anyone not prepared for the terrain.

Mountain Goat Draw Odds

Season	Tags	Applicants	Draw %	Pts Req
Rifle— Controlled	3	95	3.2%	0

Data from 2025 draw results. Resident odds shown.

Open in Draw Odds Engine

Mountain goat is a once-in-a-lifetime (OIAL) species in Idaho. The state uses a pure random draw with a 10% nonresident cap. Unit 18 goat odds are very tight — typically under 3% for residents and nonresidents alike.

Unit Logistics & Expectations

Planning Notes

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Road Conditions

Road conditions vary from paved highways to rough two-track. Verify current access conditions on federal and state land maps before the trip.

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Weather

Elk seasons in Idaho run from late August through December depending on weapon. Prepare for a wide range of conditions including early-season heat, fall rain, and late-season snow.

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Cell Service

Coverage is limited in backcountry terrain. Carry a satellite communicator or downloaded offline maps.

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Nearest Town

Use the IDFG Hunt Planner and mapping tools to identify the closest service town with fuel, lodging, and groceries before the hunt.

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Permit Notes

Tag is issued through the IDFG controlled hunt draw. Confirm hunt number, season dates, and weapon restrictions on your tag before heading out.

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Frequently Asked Questions

How do I get a elk tag for Idaho Unit 18?

Unit 18 elk tags are issued through the Idaho Department of Fish and Game controlled hunt draw. Applications are submitted during the IDFG big game draw window each year.

Where can I verify current season dates and quotas for Unit 18?

Season dates, hunt numbers, and tag quotas are published annually by IDFG and can be looked up in the IDFG Hunt Planner and the current big game rules booklet.

What is the best time to hunt mule deer in Idaho Unit 18?

The October rifle season catches bucks in transition between summer and winter range and overlaps with the rut. Early season archery hunters find bucks in the high Lemhi basins above 8,500 feet before they migrate. Both windows offer quality opportunity.

Are there large bucks in Unit 18?

The Lemhi Range does produce mature bucks — 24–28 inch typical 4x4 frames are achievable for hunters willing to reach the high country. Older age-class bucks concentrate in the more remote alpine basins with less hunting pressure.

Is Unit 18 a good goat hunt?

It is a legitimate opportunity, but the terrain is among Idaho's most demanding. Experienced backcountry hunters do best.

Can I use an outfitter for Unit 18 goat?

Yes. Several outfitters offer guided goat hunts in the Selway-Bitterroot. Nonresident hunters often hire guides given the terrain difficulty.

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Sources & Verification

Every fact on this page is tied to a primary source below. Last fact-checked 2026-04-17.

IDFG Big Game Hunting — Idaho Department of Fish and Game · supports: Species overview, General season structure, Regulations entry point · accessed 2026-04-17
IDFG Controlled Hunts — Idaho Department of Fish and Game · supports: Controlled hunt draw rules, Application deadlines, Tag quotas · accessed 2026-04-17
IDFG Hunt Planner — Idaho Department of Fish and Game · supports: Per-unit hunt numbers, Historical draw odds, Harvest statistics · accessed 2026-04-17
2025 Idaho Big Game Seasons & Rules — Idaho Department of Fish and Game · supports: Unit 18 mule deer season dates, General tag availability, Weapon season structure · accessed 2026-04-17
IDFG Hunt Planner (Interactive) — Idaho Department of Fish and Game · supports: Unit 18 season and access overview, Hunt area boundaries · accessed 2026-04-17
IDFG State of Deer and Elk (Annual Report) — Idaho Department of Fish and Game · supports: Lemhi mule deer population estimates, Fawn:doe ratios, Winter severity impacts · accessed 2026-04-17
IDFG Hunt Planner — Hunt Statistics — Idaho Department of Fish and Game · supports: Unit 18 harvest totals, Hunter success rates by season type · accessed 2026-04-17
Nez Perce-Clearwater National Forest — USDA Forest Service · supports: Selway-Bitterroot access, Wilderness rules, Trailheads · accessed 2026-04-17