Clearcutting - Environmental aspects - Oregon.

Edge effects = notes from an Oregon forest / by: (Language materials, printed)

This ecstatic nation = the American landscape and the aesthetics of patriotism / by: (Electronic resources)

Landscapes- Social aspects- West (U.S.)

West (U.S.)- Environmental conditions.

Landscapes- Symbolic aspects- West (U.S.)

Nature- Effect of human beings on- West (U.S.)

Clearcutting- Environmental aspects- Oregon.

Landscapes in art.

Forest ecology- Oregon.

Hybrid zones- Oregon.

Ranching- Environmental aspects- Wyoming.

Nuclear weapons- Testing- Nevada

Land use- Environmental aspects- West (U.S.)

West (U.S.)- In art.