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GMU · Idaho Department of Fish and Game

Unit 66

Idaho, United States

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The map opens on this unit. Turn on Hunting units in Layers to see its boundary with public land, your pins and the forecast.

About Unit 66

Unit 66 is a GMU in Idaho, United States, set by Idaho Department of Fish and Game. It covers about 907 km² (350 mi²). No town of the HuntGrid list lies inside it; the nearest is Victor, about 27 km from its edge.

HuntGrid draws its boundary from Idaho Department of Fish and Game's data for the 2026 season. The agency's regulations say which species and seasons use it.

Unit code
66
Area
907 km²
Area (miles)
350 mi²
Boundaries
2026

Public and protected land mapped inside it

HuntGrid's public land layers map about 832 km² of public or protected land inside it, 92% of the unit. Some protected land is privately owned (a conservation group's, for one). By manager, as the source names it:

Managerkm²Share
Forest Service Region 04 Intermountain81390%
Unknown222%
Idaho Department of Lands142%
Bureau of Land Management2.2under 1%
GRAYS LAKE NATIONAL WILDLIFE REFUGE2.2under 1%
Grays Lake National Wildlife Refuge2.2under 1%

Boundaries are approximate and aren't legal descriptions. Public land doesn't always mean you can hunt there: check your local regulations and posted signs.

Public land: U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2025, Protected Areas Database of the United States (PAD-US) 4.1

Seasons and regulations

Seasons for this unit that a person has checked against Idaho Department of Fish and Game's regulations:

SpeciesDatesDetails
Cougar (mountain lion)Jul 1, 2026 to Jun 30, 2027 source
Grey wolfJul 1, 2026 to Jun 30, 2027 source
American black bearAug 30, 2026 to Oct 31, 2026 source
White-tailed deerOct 10, 2026 to Oct 31, 2026 source
White-tailed deerNov 1, 2026 to Dec 19, 2026archery source
White-tailed deerNov 20, 2026 to Dec 19, 2026archery source
American black bearApr 15, 2027 to Jun 30, 2027 source

The official regulations have the final word: check them before you hunt.

Official regulations: Idaho Department of Fish and Game

Units around it

Next to it in the same unit system

Other hunting units that cover part of it

What HuntGrid shows for Unit 66

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Questions

How big is Unit 66 (GMU)?

About 907 km² (350 mi²), as HuntGrid maps Idaho Department of Fish and Game's boundary.

How much public or protected land is in Unit 66?

HuntGrid's public land layers map about 832 km² of public or protected land, 92% of the unit; the largest share is managed by Forest Service Region 04 Intermountain. Public land doesn't always mean you can hunt there.

Where are the season dates for Unit 66?

This page lists 7 seasons a person has checked against Idaho Department of Fish and Game's regulations; the official regulations have the final word.

Which units are next to Unit 66?

In the same unit system: Unit 66A, Unit 67 and Unit 69.

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Sources

Unit boundary: Idaho Department of Fish and Game. Licence: Idaho Department of Fish and Game (published with a no-warranty disclaimer). Boundaries for the 2026 season.

HuntGrid isn't affiliated with Idaho Department of Fish and Game. The official regulations and maps have the final word.