GMU 426 Diablo: public land and hunting map
GMU 426 Diablo is one of Washington Department of Fish and Wildlife (WDFW)’s 152 Game Management Units in Washington. It covers about 321 square miles (205,418 acres), and roughly 99% of it is public land: National Park Service 56%, Forest Service 43%.
- 99%public land
- 321square miles
- 203,159public acres
- 4neighbouring units
Measured Oct 12, 2026 from agency boundaries and USGS PAD-US 4.1 · sources and method
Who manages the land
- U.S. Forest Service43%
- National Park Service56%
Share of the unit’s area. Federal agencies plus state wildlife, trust and natural-resource land, as the WikiHunt map classifies it. The rest is private, tribal, local or other land.
Rut: Published deer rut timing for Washington: ≈ Nov 23. Rut dates and sources for Washington.
Units next to GMU 426 Diablo
Washington season dates, 2026
Statewide general seasons. Many units have their own dates, quotas or draw-only hunts, so check the unit in the regulations before you go.
| Species | Season | 2026 dates |
|---|---|---|
| Deer | Archery Deer | Sep 1 – Sep 25 |
| Deer | Muzzleloader Deer | Sep 26 – Oct 4 |
| Deer | Modern Firearm Deer | Oct 17 – Nov 1 |
| Elk | Archery Elk | Sep 12 – Sep 24 |
| Elk | Modern Firearm Elk | Oct 31 – Nov 8 |
| Black bear | Fall Bear | Aug 1 – Nov 15 |
| Turkey | Fall Turkey | Sep 1 – Dec 31 |
Full notes on the Washington page · Washington regulations.
Questions
How much of GMU 426 Diablo is public land?
About 99% of GMU 426 Diablo (203,159 of 205,418 acres) is federal or state public land in USGS PAD-US 4.1, mostly National Park Service and U.S. Forest Service. Public land is not always open land: check access and closures before you go.
Who manages the land in GMU 426 Diablo?
National Park Service: 56%; U.S. Forest Service: 43%. The rest is private, tribal, local government or other land.
Which units border GMU 426 Diablo?
GMU 203 Pasayten, GMU 218 Chewuch, GMU 231 Gardner and GMU 437 Sauk.
Where are the season dates and rules for GMU 426 Diablo?
Washington Department of Fish and Wildlife (WDFW) sets them. Start at the Washington hunting regulations. WikiHunt shows the statewide general seasons on the Washington page and in the app.
Sources and method
- Boundary: Washington Department of Fish and Wildlife (WDFW), the same layer the WikiHunt map draws.
- Public land: USGS Protected Areas Database (PAD-US) 4.1, Fee Managers layer (public domain).
- Method: the unit and PAD-US polygons are simplified to about 100 m and measured on a grid of about 250 cells across the unit, so overlapping records are counted once. Expect about ±1 percentage point.
- Season dates: WikiHunt’s season table, updated Sep 2, 2026, checked against each state’s published regulations. Dates change; the regulations win.
- Last updated: Oct 12, 2026. Spotted a mistake? Tell us.