REMOVE

1. roads
2. oil paint (paint)
3. boats
4. construction equipment

WHAT

1. construction sites (1)
2. fences (site elements) (1)
3. figures (representations) (1)
4. Grand Coulee Dam (dam) (1)
5. hills (1)
6. landscapes (representatio … (1)
7. rivers (1)
8. telephone poles (1)
9. Visual works (hierarchy n … (1)

WHERE

1. Nespelem, Washington (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1936 (1)
2. Regionalist (American Sce … (1)