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Diamond Creek Elk Zone
Idaho GMU 66A
Strategic hunting data, boundary maps, and 2026 season dates for Game Management Unit 66A.
Updated for 2026 Season
TerrainHigh Desert/Basin
OwnershipLand breakdown unavailable
Access DifficultySee IDFG
Key SpeciesBlack Bear
Season TypeGeneral & Controlled
ZoneDiamond Creek
Unit 66A Overview
Idaho Game Management Unit 66A (GMU 66A) is a premier hunting destination located in the Diamond Creek Elk Zone. Home to Black Bear, Deer, Elk, Gray Wolf, Mountain Lion, this unit features open sagebrush steppe, where stalking prowess and early morning glassing are critical. Public-land breakdown for Unit 66A 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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2026 Regular Schedule
Seasons in Unit 66A typically begin in Oct 10.
There are 11 confirmed seasons in Unit 66A.
View Full ScheduleHarvest Data Coming Soon
We're currently digitizing 2023-2025 harvest reports and draw odds for Unit 66A. Check back shortly for deep-dive analytics.
Data Pipeline Active
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
Diamond Creek covers the Caribou Range east of Soda Springs — high sagebrush parks, aspen pockets, and intermittent timber. Elk populations are moderate and tend to be visible from glassing knobs.
Soda Springs and Afton (Wyoming) are the realistic resupply points. Snow can close upper roads quickly.
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 has open seasons for 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 66A?
Yes. Cell service is often limited or non-existent in the core hunting areas of Unit 66A. Having saved offline maps is critical for safety and staying on legal ground.
Is Unit 66A mostly public land?
Unit 66A is approximately 80.5% public (mostly public). That gives DIY hunters meaningful range for scouting and stalking without trespass risk.
Land Ownership Breakdown
USFS65.71%
Private17.69%
Other12.55%
State1.73%
Tribal1.51%
BLM0.54%
Source: IDFG Hunt Planner · Inside Idaho.
Other Units in the Diamond Creek 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 High Desert/Basin
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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Pro Tip
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