game management unit · Washington Department of Fish and Wildlife

GMU 139 Steptoe

Washington, 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 GMU 139 Steptoe

GMU 139 Steptoe is a game management unit in Washington, United States, set by Washington Department of Fish and Wildlife. It covers about 3,436 km² (1,327 mi²). Towns inside it include Pullman and Colfax.

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

Unit code: 139
Area: 3,436 km²
Area (miles): 1,327 mi²
Boundaries: 2026

Public and protected land mapped inside it

HuntGrid's public land layers map about 102 km² of public or protected land inside it, 3% 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
Unknown	75	2%
Bureau of Land Management	25	under 1%
Washington Department of Fish & Wildlife	9.4	under 1%
Other or unnamed managers	1.2	under 1%
Washington State University	0.5	under 1%
City of Pullman	0.2	under 1%
Town of Rosalia	0.1	under 1%
City of Colfax	0.1	under 1%
Other or unnamed managers	0.2	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 Washington Department of Fish and Wildlife's regulations:

Species	Dates	Details
Cougar (mountain lion)	Sep 1, 2026 to Mar 31, 2027	source
Wild turkey	Sep 1, 2026 to Dec 31, 2026	source
Elk (wapiti)	Oct 31, 2026 to Nov 8, 2026	source
Elk (wapiti)	Nov 25, 2026 to Dec 8, 2026	muzzleloader source
White-tailed deer	Nov 25, 2026 to Dec 8, 2026	antlered, muzzleloader source
Elk (wapiti)	Dec 9, 2026 to Dec 31, 2026	antlerless, muzzleloader source
Elk (wapiti)	Dec 9, 2026 to Dec 31, 2026	antlerless, archery source
Elk (wapiti)	Dec 9, 2026 to Dec 31, 2026	antlerless source

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

Official regulations: Washington Department of Fish and Wildlife

Units around it

Next to it in the same unit system

Other hunting units that cover part of it

What HuntGrid shows for GMU 139 Steptoe

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.

Open in HuntGrid

Questions

How big is GMU 139 Steptoe (game management unit)?

About 3,436 km² (1,327 mi²), as HuntGrid maps Washington Department of Fish and Wildlife's boundary.

How much public or protected land is in GMU 139 Steptoe?

HuntGrid's public land layers map about 102 km² of public or protected land, 3% of the unit; the largest share is managed by Unknown. Public land doesn't always mean you can hunt there.

Where are the season dates for GMU 139 Steptoe?

This page lists 8 seasons a person has checked against Washington Department of Fish and Wildlife's regulations; the official regulations have the final word.

Which units are next to GMU 139 Steptoe?

In the same unit system: GMU 127 Mica Peak, GMU 130 Cheney, GMU 142 Almota and GMU 284 Ritzville.

Sources

Unit boundary: Washington Department of Fish and Wildlife. Boundaries for the 2026 season.

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