Unit 266 · Horse Heaven
About this unit
Horse Heaven Hills shrub-steppe country south of the Yakima Valley. Sage and bunchgrass ridges over the Columbia River; WDFW Sunnyside Wildlife Area on the north.
- Horse Heaven Hills
- Columbia River
Public lands inside this unit
1 found
Trails near Unit 266
7 found
Pacific Crest Trail
Difficulty: Expert2626.0 miTrailPalouse to Cascades State Park Trail
Difficulty: Expert1113.3 miTrailBoise, Idaho to Beaufort Sea, Alaska OHV Trip
Difficulty: Moderate7.2 miTrailKeystone Ridge Trail
Difficulty: Difficult3.3 miTrailDry Gulch South Ridge and Rooster Comb Loop
Difficulty: Moderate2.9 miTrailColumbia-Plateau Land
Difficulty: Moderate2.9 miTrailSled Hill
Difficulty: Easy0.1 miTrail
Campgrounds near Unit 266
3 found
On the books in Washington
Species inventory is state-level — which units actually hold or permit each species varies. Verify unit-specific rules with the state agency linked above.
Official agency resources
Washington Department of Fish and Wildlife
- Hunting regulations ↗
https://wdfw.wa.gov/hunting/regulations
- Draw / lottery ↗
https://wdfw.wa.gov/hunting/special-hunts
- GMU map ↗
https://wdfw.wa.gov/hunting/gmu
- Harvest reporting ↗
https://wdfw.wa.gov/hunting/requirements/harvest-reporting
- Hunter education ↗
https://wdfw.wa.gov/hunting/requirements/education
- Buy a license ↗
https://wdfw.wa.gov/licensing
Authoritative source
Outdoors does not publish hunting regulations directly. For current season dates, bag limits, legal weapons, draw deadlines, and license costs in unit 266, go straight to the issuing agency.
Read the Washington agency pageBoundary verified by Outdoors against the agency source on 10/11/2026.