Idaho GMU 66A
Strategic hunting data, boundary maps, and published IDFG season dates for Game Management Unit 66A.
Unit 66A Overview
Idaho Game Management Unit 66A (GMU 66A) is in the Diamond Creek Elk Zone. Season records in this guide list Black Bear, Elk, Mule Deer, White-tailed Deer. This unit features open sagebrush steppe, where stalking prowess and early morning glassing are critical. About 80.5% of Unit 66A 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 99.73%; 0.27% 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 66A records is Apr 15. Each species, tag, weapon, and hunt area has its own dates and restrictions below.
EElk Seasons
- GeneralArcheryGeneral A TagAntlerless or Antlered · Area Units 66A and 76Season Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 2041 · 50 permits · Area 66A-1Season Dates
- ControlledAny WeaponControlled Hunt Outfitter AllocatedAntlered · Hunt 2211 · 2 permits · Area 66A-1Season Dates
- ControlledAny WeaponControlled Hunt Outfitter AllocatedAntlered · Hunt 2212 · 12 permits · Area 66A-1Season Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 2042 · 350 permits · Area 66A-1Season Dates
- ControlledAny WeaponControlled Hunt AntlerlessAntlerless · Hunt 2104 · 60 permitsSeason Dates
WWhite-tailed Deer Seasons
- ControlledAny WeaponControlled Hunt Extra AntlerlessAntlerless · Hunt 1146 · 100 permits · Area 66A-1XSeason Dates
BBlack Bear Seasons
- GeneralAny WeaponGeneral Any WeaponEither-sexSeason Dates
- GeneralDog TrainingGeneral Any WeaponEither-sexSeason Dates
MMule and White-tailed Deer Seasons
- GeneralArcheryGeneral ArcheryAntleredSeason Dates
- GeneralAny WeaponGeneral Any WeaponAntleredSeason Dates
- ControlledAny WeaponControlled Hunt AntleredAntlered · Hunt 1052 · 5 permitsSeason Dates
Harvest Trends & Success
Harvest statistics for Unit 66A
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 66A Boundary
Those portions of BONNEVILLE and CARIBOU COUNTIES within the following boundary: beginning on McCoy Creek Road (Forest Service Road 087) at the Idaho-Wyoming State line, west on McCoy Creek Road through Herman to Bone-Grays Lake Road, then west on Bone-Grays Lake Road to West Side Road west of Grays Lake, then south on West Side Road to State Highway 34, then east on State Highway 34 to the state line, then north along the state line to the point of beginning.
Diamond Creek Zone Context
Southeastern Idaho — Caribou Range
The Diamond Creek zone groups Units 66A and 76 in southeastern Idaho. Compare both unit guides when planning around Caribou-range country; a nearby unit in Tex Creek or Bannock is not covered merely because the landscape appears continuous.
Consider Soda Springs when arranging Idaho supplies, according to your route. If using a Wyoming approach, check the state boundary and applicable travel rules, then verify the forecast and current road condition.
See all units in the Diamond Creek ZoneCommon Questions About Unit 66A
Where is Idaho GMU 66A?
Unit 66A sits in the Diamond Creek Elk Zone. The landscape is predominantly high desert/basin, requiring appropriate gear and preparation.
What species can I hunt in Unit 66A?
Unit 66A season records list Black Bear, Mule Deer, Elk, White-tailed Deer. Confirm current dates and weapon legality with Idaho Fish and Game before applying or buying tags.
Are offline maps useful in GMU 66A?
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 66A mostly public land?
Unit 66A is approximately 80.5% 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 Diamond Creek Zone
Before hunting Unit 66A
- 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 66A. 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.