REMOVE

1. rubbish
2. rivers
3. black-and-white film
4. plants
5. construction sites

WHAT

1. banks (landforms) (1)
2. buildings (structures) (1)
3. bushes (1)
4. exterior views (1)
5. hills (1)
6. landscapes (representatio … (1)
7. paths (1)
8. rock (1)
9. sheds (storage structures … (1)
10. sky (1)
11. trees (1)
12. Visual Works (hierarchy n … (1)
13. wood products (1)

WHERE

1. Grand Coulee, Washington (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1936 (1)
2. 1937 (1)
3. ca. 1936 - 1937 (1)