Walker Creek Field
type: Concept
preferred label: حوضه والکرکریک @fa
related: Powder River basin

Oregon
type: Concept
preferred label: اورگان @fa
related: Powder River basin

Powder River basin
type: Concept
broader: United States
preferred label: حوضه رود پودر @fa
related: Montana
related: Wyoming
related: Walker Creek Field
related: Oregon

Montana
type: Concept
preferred label: مونتانا @fa
related: Powder River basin

Wyoming
type: Concept
preferred label: ویومینگ @fa
related: Powder River basin

United States
type: Concept
narrower: Powder River basin
preferred label: ایالات متحده @fa