Idaho GMU 18
Strategic hunting data, boundary maps, and published IDFG season dates for Game Management Unit 18.
Unit 18 Overview
Idaho Game Management Unit 18 (GMU 18) is in the Hells Canyon Elk Zone. Season records in this guide list Black Bear, Elk, Mule Deer, White-tailed Deer. This unit features high-elevation rugged terrain, requiring physical preparation and optics for cross-canyon spotting. About 79.6% of Unit 18 is mapped as public land. This is not parcel-level access authorization; verify boundaries, closures, and legal access before entering.
Landscape Analysis
Surface Management
Agency shares from IDFG Hunt Planner; this is not parcel-level access authorization.
Listed agency shares total 99.69%; 0.31% is not itemized in this breakdown.
2026 season dates, from Idaho Fish and Game
Pulled from the IDFG Hunt Planner API (2026). Idaho re-issues seasons each year and corrects its own systems between editions, so Idaho Fish and Game remains the sole authority for legal dates, tags and restrictions. Confirm before you hunt.
Check the IDFG Hunt PlannerPublished Season Schedule
The earliest opening in our Unit 18 records is Apr 15. Each species, tag, weapon, and hunt area has its own dates and restrictions below.
EElk Seasons
- ControlledArcheryControlled Hunt ArcheryAntlered · Hunt 2121 · 40 permitsSeason Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 2002 · 80 permitsSeason Dates
- ControlledAny WeaponControlled Hunt Outfitter AllocatedAntlered · Hunt 2179 · 7 permitsSeason Dates
- ControlledAny WeaponControlled Hunt AntlerlessAntlerless · Hunt 2056 · 150 permitsSeason Dates
WWhite-tailed Deer Seasons
- GeneralAny WeaponGeneral Any WeaponAntlerless or AntleredSeason Dates
- ControlledAny WeaponControlled Hunt Extra AntleredAntlered · Hunt 1119 · 50 permits · Area 18XSeason Dates
- ControlledAny WeaponControlled Hunt Extra AntlerlessAntlerless · Hunt 1132 · 100 permits · Area 18XSeason Dates
- GeneralMuzzleloaderGeneral MuzzleloaderAntlerless or AntleredSeason Dates
MMule Deer Seasons
- ControlledAny WeaponControlled Hunt Extra AntlerlessAntlerless · Hunt 1133 · 50 permits · Area 18XSeason Dates
BBlack Bear Seasons
- GeneralAny WeaponGeneral Any WeaponEither-sexSeason Dates
- GeneralDog TrainingGeneral Any WeaponEither-sexSeason Dates
MMule and White-tailed Deer Seasons
- ControlledAny WeaponControlled Hunt Outfitter AllocatedAntlered · Hunt 1153 · 7 permitsSeason Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 1009 · 100 permitsSeason Dates
- ControlledAny WeaponControlled Hunt Outfitter AllocatedAntlered · Hunt 1154 · 2 permitsSeason Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 1010 · 25 permitsSeason Dates
Harvest Trends & Success
Harvest statistics for Unit 18
Seven seasons of hunter counts, harvest totals and success rates, broken out by weapon — straight from Idaho Fish and Game.
Controlled Hunt Draw Odds
Draw odds for every hunt in this unit
Resident and nonresident draw odds, permits offered, and applicant counts for the 2026 Idaho controlled hunt drawings.
Unit 18 Boundary
Those portions of IDAHO and ADAMS COUNTIES within the following boundary: beginning at Riggins, up the Little Salmon River to Rapid River, then up Rapid River to and including the Shingle Creek drainage to the Snake River divide, then south along the divide to Purgatory Saddle at the head of Granite Creek, then down Granite Creek to the Snake River, then downstream to Pittsburg Landing, then east on Pittsburg Landing-White Bird Road to the Salmon River, then upstream to the point of beginning.
Hells Canyon Zone Context
West-Central Idaho — Snake River Border
The Hells Canyon zone groups Units 11, 13, and 18 along Idaho's western side. Snake River canyon country can involve steep approaches between river and rim. Compare the unit boundaries with your intended road, trail, or boat approach before selecting a camp.
Check the actual launch or trailhead, legal landing access, and elevation change for your route. A boat approach still requires a valid tag, lawful shore access, and a workable return and meat-transport plan.
See all units in the Hells Canyon ZoneCommon Questions About Unit 18
Where is Idaho GMU 18?
Unit 18 sits in the Hells Canyon Elk Zone. The landscape is predominantly rugged mountains, requiring appropriate gear and preparation.
What species can I hunt in Unit 18?
Unit 18 season records list Black Bear, Elk, White-tailed Deer, Mule Deer. Confirm current dates and weapon legality with Idaho Fish and Game before applying or buying tags.
Are offline maps useful in GMU 18?
Plan for gaps in cell service. Roam Idaho's current web map requires a connection, so download an official offline map or carry a paper map before entering the field.
Is Unit 18 mostly public land?
Unit 18 is approximately 79.6% public (mostly public). Public-land share is not parcel-level access permission; verify ownership boundaries, legal routes, and closures before entering.
Other Units in the Hells Canyon Zone
Before hunting Unit 18
- Compare Idaho season and tag planning information against the specific hunt number and species you intend to pursue.
- Review public-land access and land-manager resources to check entry routes, road restrictions, and closures.
- Use the backcountry hunting preparation guide to plan navigation, weather protection, and the trip back out.
Terrain Breakdown
Included with Roam Pro — $3/month, 7-day free trial.
Land Access
Species associated with Unit 18. Open a guide for habitat, timing, and regulation context.
Field Reminder
Use this page and the connected map for planning, then carry an official offline map and confirm current seasons, closures, and access before heading out.