Unit research · Washington · GMU 388

Grayback — Washington

9% public hunting land across 311,818 ac. Road access is easy — only 1% of the public land is more than a mile from a road. Watch the checkerboard: 4,149 ac of public land has no public route in.

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Deer draw odds (3)Odds and pins: free, no account

GMU 388Full map — ownership, roads, wind →

80–5,820 ft

elevation range

public hunting land

of public >1 mi from a road

4,149 ac

landlocked public

1.82

road miles per mi²

47 mi

trails on public land

Computed from primary government data by the AGPL pipeline. See the code →

Tags & season

Draw hunts on this ground.

3 limited-entry deer hunts are drawn on GMU 388: apply in the Washington draw, by the agency's deadline below.

Deer tag · 3 draw hunts (2026)$71.31 resident · $751.37 nonresident

Plus: Washington big game hunting licence$61.70 resident · $599.07 nonresident

Season dates: see Washington Department of Fish and Wildlife's regulations

WDFW — Big game hunting licences and tags (2026) ↗

WDFW — Big game hunting licences and tags (2026) ↗Draw odds for Washington deer →How the Washington draw works →

Fees and draw dates from Washington Department of Fish and Wildlife, 2026, verified 2026-08-15 — past its verify-by date, confirm with the agency. Tag type from the agency's published draw statistics: a gmu that appears in none of them has no limited-entry hunt we know of. Source: WDFW — Big game hunting licences and tags (2026) · WDFW — Special hunt permits.

Land & access

■ State DNR 4%■ State wildlife 4%■ Forest Service 1%▨ Parks & other public 2%□ Private 89%

Unit area311,818 ac

Public hunting land28,528 ac (9%)

Parks & other public6,859 ac · State parks, Other state, County

Landlocked public4,149 ac (14.5%)

Deer draw pressure0.79 tags/mi² public (0.062 of total area)

Motorized routes (MVUM + roads)888 mi

Mapped trails on public land47 mi

Backcountry

Public land >1 mi from a road376 ac (1% of public)

Road density1.82 mi/mi²

Managed byState DNR 13k ac · State wildlife 12k ac · Forest Service 2k ac

Elevation80–5,820 ft

Median elevation1,870 ft

Median slope5°

Where the ground sits

80 ft5,820 ft

Tap or hover the bars for each elevation band

Slope mix

Which way the slopes face

N 16%

E 19%

S 39%

W 26%

Share of ground steeper than 5° — flat ground has no facing

North slopes hold shade, cover and snow; south slopes open first.

USGS 3DEP 1 arc-second (30 m), slope at native resolution in a local metric projection, sampled on a 200 m grid. See the code →

Unit intelligence report · Pro, $5 a month or $49 a year

22,850 ac of this gmu has burned — 7% of the unit. USGS migration corridors cover 19%. The full report assembles it into one printable document and keeps it current as the facts change.

Open the report →

Season conditions — measured, not vibes

Historical temperatures · 2000–2025

Normals for 2000–2025 — tap or hover for a month

Measured at MUNICIPAL AIRPORT, 28 km from the unit’s center and ~1,600 ft below its median elevation — expect the unit to run colder. NOAA ISD-Lite hourly observations.

Harvest — agency survey estimates

Deer · 2025 · general season

18.1% success

335 taken by 1,850 hunters

Deer hunter success · 2018–2025 · 15% → 18%

Season breakdown · 2025

Season	Success	Harvest	Hunters
Archery	19%	154	813

Which season is the value play here — same ground, different odds.

Elk · 2025 · general season

9.9% success

26 taken by 263 hunters

Elk hunter success · 2018–2025 · 9% → 10%

Season breakdown · 2025

Season	Success	Harvest	Hunters
Archery	0%	0	161

Which season is the value play here — same ground, different odds.

Black bear · 2025 · general season

2.6% success

3 taken by 114 hunters

Black bear hunter success · 2013–2025 · 7% → 3%

Harvest estimates from WDFW's hunter reports, published per GAME MANAGEMENT UNIT as HTML tables — the only state we carry that publishes harvest as structured markup rather than as a PDF whose layout has to be recovered from whitespace. Success rates are WDFW's own and are carried verbatim. METHOD IS THE VARIANT. Archery, Modern Firearm and Muzzleloader are separate seasons with separate tags in Washington, so a hunter appears in exactly one and the 'all' row is their sum. "Multiple Weapons" is its own tag type rather than a total, and is carried as its own variant. ⚠️ TWO TABLE SHAPES. Deer and elk put the GMU in the table's caption with one row per method beneath; black bear puts the GMU in the row's first cell with no method column. WDFW also upper-cases unit names in the deer and elk reports ("101 - SHERMAN") and title-cases them in the bear reports ("501 - Lincoln") — an uppercase-only pattern reads deer and elk perfectly and silently skips every bear table. General-season reports only. WDFW's special-permit tables carry harvest by point class but no hunter count and no success rate, so they cannot be turned into a rate and are not ingested; the general-season tables cover the same units. Deer and elk carry eight seasons and black bear thirteen — the older deer and elk reports use a layout this reader does not handle and are omitted whole rather than in part. Source: WDFW Game Harvest Reports (per GMU, per season).

How these numbers are made

public_land_pct = public_area / unit_area
landlocked = public ∖ reachable(roads, corners)
remote = public ∖ buffer(roads, 1 mi)
# AGPL — read the pipeline →

Computed, not curated: no paid research team, no opinions dressed as data. If a number looks wrong, tell us at support@openhuntmaps.com — the fix ships for everyone.

Nearby GMUs

West Klickitat · GMU 57827% public · 0% remote East Klickitat · GMU 3829% public · 22% remote Wind River · GMU 57473% public · 2% remote Lewis River · GMU 56090% public · 15% remote Siouxon · GMU 57292% public · 8% remote Cowiche · GMU 36842% public · 3% remote

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