GMU · Idaho Department of Fish and Game
Unit 42
Idaho, United States
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 42
Unit 42 is a GMU in Idaho, United States, set by Idaho Department of Fish and Game. It covers about 3,477 km² (1,343 mi²). No town of the HuntGrid list lies inside it; the nearest is Mountain Home, about 71 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
- 42
- Area
- 3,477 km²
- Area (miles)
- 1,343 mi²
- Boundaries
- 2026
Public and protected land mapped inside it
HuntGrid's public land layers map about 3,329 km² of public or protected land inside it, 96% of the unit. Some protected land is privately owned (a conservation group's, for one). By manager, as the source names it:
| Manager | km² | Share |
|---|---|---|
| Bureau of Land Management | 3,210 | 92% |
| Idaho Department of Lands | 119 | 3% |
| Unknown | 0.0 | under 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:
| Species | Dates | Details |
|---|---|---|
| Cougar (mountain lion) | Jul 1, 2026 to Jun 30, 2027 | source |
| Grey wolf | Jul 1, 2026 to Jun 30, 2027 | source |
The official regulations have the final word: check them before you hunt.
Units around it
Next to it in the same unit system
Other hunting units that cover part of it
- Canada Geese Area 1 (Canada goose area)
- Duck Area 1
- White-fronted Geese Area 3 (white-fronted goose area)
- Light Geese Area 3 (light goose area)
- California Sheep controlled hunt area 42
- Deer controlled hunt area 41-1
- Deer controlled hunt area 42
- Elk controlled hunt area 40-1
- Elk controlled hunt area 40-1X
- Elk controlled hunt area 42
- Owyhee Elk Zone
- Pronghorn controlled hunt area 40-1
- Pronghorn controlled hunt area 41-1
What HuntGrid shows for Unit 42
- Its boundary on the map; tap inside it for the unit's card with the agency's regulations link.
- Public land and the other hunting units in the same view, each with its source.
- Season dates once a person has checked them, and legal shooting hours where the rule is checked.
- Hourly wind with a scent cone for every stand, and official weather alerts.
- Offline maps: download the area and use the map, your pins and the forecast with no signal.
Questions
How big is Unit 42 (GMU)?
About 3,477 km² (1,343 mi²), as HuntGrid maps Idaho Department of Fish and Game's boundary.
How much public or protected land is in Unit 42?
HuntGrid's public land layers map about 3,329 km² of public or protected land, 96% of the unit; the largest share is managed by Bureau of Land Management. Public land doesn't always mean you can hunt there.
Where are the season dates for Unit 42?
This page lists 2 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 42?
In the same unit system: Unit 40 and Unit 41.
More on huntgrid.net
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.