GMU 203 Pasayten
Washington's ultimate high-country mule deer wilderness — 800+ square miles of roadless Pasayten, all public, all earned on foot or horseback.
WDFW Region 2 — Okanogan / North Cascades (District 6) · Last reviewed 2026-07-12
Area
815
sq mi
Public land
100%
approx.
Elevation
3,800–8,900
feet
Motorized
wilderness
access
Overview
GMU 203 "Pasayten" is a vast (~815-square-mile) unit sprawling along the Canadian border in northern Okanogan County, on the east slope of the North Cascades. It is essentially 100% public land — nearly all of it Okanogan-Wenatchee National Forest, the bulk of that inside the roadless Pasayten Wilderness — and it holds part of one of the largest migratory mule deer herds in the state. This is a genuine backcountry unit: no roads through the core, big open alpine basins and timberline saddles, and deer scattered clear to tree line during the high hunt. It rewards backpackers and horse-packers willing to get deep, and it sits inside the North Cascades grizzly bear recovery zone.
Terrain
Rugged, glacier-carved North Cascades high country that grows more severe from east to west, culminating in alpine tundra near 9,000 feet. Rocky peaks — Castle Peak (8,238 ft), Blizzard Peak (7,602 ft), Three Fools Peak (7,943 ft) and Jim Peak (7,001 ft) — tie into the Devil's Backbone in the south. The Pasayten River bisects the unit. The Forest here is largely roadless, so travel is by trail on foot or horseback.
Cover: Elevational banding from mixed conifer forest on the lower and middle slopes up through subalpine larch/spruce/fir parkland to open alpine tundra on the peaks. Numerous wildfire burn scars from 2001 onward — and the 2017–2018 fires — are producing high-quality early-successional forage in the middle and upper elevations, prime summer deer range.
Landmarks: Pasayten Wilderness core (roadless) · Pasayten River (bisects the unit) · Castle Peak (8,238 ft) · Three Fools Peak (7,943 ft) / Devil's Backbone · Harts Pass (SW gateway, high road end) · Iron Gate trailhead (east gateway) · Andrews Creek & Billy Goat trailheads (horse access) · Pacific Crest Trail (western boundary corridor)
Access
Access is not an ownership problem here — it's essentially all public National Forest, and more than three-quarters of the western district is public with extensive access. The challenge is that the core is designated Wilderness and roadless: no motorized or mechanized travel inside the Pasayten, so you hunt it on foot or with stock. Foot hunters reach the higher, more open country most easily via the Harts Pass trailhead (SW/west end) and Iron Gate trailhead (east end); horse parties use Andrews Creek and Billy Goat trailheads to reach good deer terrain farther in. GPS is essential given the scale and lack of roads.
Managers: US Forest Service (Okanogan-Wenatchee National Forest), Pasayten Wilderness (designated Wilderness — non-motorized)
Access points: Harts Pass trailhead (western gateway, high elevation start) · Iron Gate trailhead (eastern gateway) · Andrews Creek trailhead (horse access, Chewuch River side) · Billy Goat trailhead (horse access) · Pacific Crest Trail corridor (western edge)
Species notes
Mule Deer
common qualityThe reason to hunt GMU 203. District 6 supports one of the largest migratory mule deer herds in the state, and the Pasayten holds good numbers of deer clear to tree line during the fall high hunt. Mature bucks summer high and remote in the burn-fed basins; as snow builds (often by the second week of October) they migrate down toward lower winter range. Recent fawn:doe productivity (77:100) and overwinter recruitment have been the best in a decade, signaling a herd on the rebound after drought/fire/winter declines.
- →During the early/high hunt, backpack or pack deep and glass the burn scars and open alpine basins at dawn/dusk — succulent post-fire forage concentrates deer at middle and upper elevations.
- →Look for mature bucks bedded in isolated tree clumps with commanding views once they shift from feeding to security mode.
- →Foot hunters: Harts Pass and Iron Gate give the quickest boot access to high, open country; horse parties reach deeper terrain from Andrews Creek and Billy Goat.
- →Late in the fall, intercept the migration onto lower winter range as snow pushes deer down.
- →Carry and rely on GPS — the unit is enormous, roadless and easy to get turned around in.
Rocky Mountain Elk
transient lowElk numbers are very low across western Okanogan County and the harvest strategy is actually designed to minimize elk to prevent ag damage — hunters took just six elk across the nine western district GMUs combined in 2023. Elk here are a chance encounter, not a plan.
- →Treat any elk as opportunistic while deer hunting; do not build a trip around them.
- →Extensive local knowledge is essentially required to find elk west of the Okanogan River.
Mountain Goat
limited trophyMountain goats inhabit the high rocky peaks of the Pasayten, but this is a rare, draw-only, once-in-a-lifetime opportunity — not a general hunt. North Cascades goat numbers have declined since about 2016 (statewide count ~917 in 2022), and Washington only permits limited harvest where herds meet population thresholds.
- →Only relevant if you draw a mountain goat permit for the applicable hunt area — verify current boundaries, which do not match the GMU exactly.
- →Expect extreme alpine terrain, long approaches and demanding glassing on the high peaks and Devil's Backbone.
Black Bear
common opportunityBlack bears are present through the forested and burn-regrowth country and offer a reasonable secondary opportunity (about 4–5 taken in the unit in a recent season). Critically, GMU 203 lies inside the North Cascades grizzly bear recovery zone, so bear ID is a legal and ethical necessity.
- →Glass avalanche chutes, burn regrowth and berry-rich basins early and late.
- →Positively identify species before shooting — endangered grizzlies could be present; take WDFW's Bear Identification Program.
- →Hunt the same high burn scars that concentrate deer forage.
Cougar
common opportunityCougars follow the migratory deer herd through the Pasayten. Harvest is managed under a regional cap that can close the season once met.
- →Cut tracks in fresh snow along drainages and trail corridors.
- →Check the District's cougar quota status before hunting.
Pro tips
- →This is a fitness-and-logistics unit, not a road unit — the payoff scales with how deep you're willing to pack. Harts Pass and Iron Gate for boots, Andrews Creek and Billy Goat for horses.
- →Hunt the burns. Fire scars from 2001 through the 2017–2018 fires grow the nutritious forbs and grasses that pull bucks to middle and upper elevations — glass them at first and last light.
- →Play the weather. The first real snow around mid-October kicks off the migration; being positioned when deer start pouring toward winter range is worth more than any single glassing spot.
- →GPS is mandatory. The unit is 800+ square miles of roadless wilderness — download offline maps and mark your entry route.
- →Know your bears. You're inside the North Cascades grizzly recovery zone; take the WDFW Bear Identification course and be 100% certain before any bear shot.
- →It's non-motorized Wilderness — no bikes, no wheeled game carts, no drones; plan your meat pack-out with stock or multiple trips.
Watch out for
- !Roadless designated Wilderness — no motorized or mechanized access; a downed animal deep in means a very long pack-out.
- !Volatile alpine weather; significant snow possible by early-to-mid October can strand hunters or cut a trip short.
- !Grizzly bear recovery zone — misidentifying and shooting a grizzly is a serious legal violation; ID is required.
- !Enormous, easy-to-get-lost country with limited/no cell coverage — carry GPS, map/compass and emergency comms.
- !Mountain goat is draw-only and the hunt-area boundary does not match the GMU — don't assume a general goat opportunity.
- !Cougar season runs under a regional cap and can close mid-season once met.
- !Deer numbers have swung with drought, fire and hard winters; the herd is recovering but conditions vary year to year.
Logistics
Winthrop and Mazama in the Methow Valley are the staging towns for the Harts Pass / west-end trailheads (gas, groceries, lodging, outfitters); Twisp and Omak add fuller services and the Chewuch/Andrews Creek approaches run north out of Winthrop. There is no drive-in hunting in the core — plan a multi-day backpack or a horse trip, and stage gear at the trailheads. Weather is volatile: warm sun to full winter and significant high-elevation snow are both possible by the second week of October, so pack for both. This is committing backcountry; register a plan and carry navigation and emergency gear. WDFW's Region 2 office (Ephrata, 509-754-4624) handles the district.
Nearest towns: Winthrop, Mazama, Twisp, Omak
Seasons & regulations
This page carries no season dates or regulations. Get current rules from the official Washington sources:
Research sources: WDFW 2024 District 6 Hunting Prospects (Region 2, Okanogan County) · GoHunt — Washington Unit 203 (Pasayten) profile · USFS — Pasayten Wilderness · WDFW — Mountain goat management / permit hunt areas
FAQ
- How big is GMU 203 in Washington?
- GMU 203 (Pasayten) covers about 815 square miles, ranging from roughly 3,800 to 8,900 feet in elevation. Area is computed from the unit boundary polygon.
- How much public land is in GMU 203?
- Approximately 100% of the unit is public land. Primary managers: US Forest Service (Okanogan-Wenatchee National Forest), Pasayten Wilderness (designated Wilderness — non-motorized). Always verify ownership boundaries on the ground.
- What species does the catalog list for GMU 203?
- Mule Deer, Rocky Mountain Elk, Mountain Goat, Black Bear, Cougar. For seasons, tags, and regulations, use the official Washington agency resources linked on this page — this page carries no regulatory information.
Put GMU 203 on your map.
Boundary lines, public/private ownership, topo, and offline maps for this unit — in Baseline Maps, free for 14 days.