REMOVE

1. construction sites
2. rubbish
3. construction equipment
4. trucks
5. mountains

WHAT

1. banks (landforms) (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. bushes (1)
5. cranes (equipment) (1)
6. exterior views (1)
7. Grand Coulee Dam (dam) (1)
8. hills (1)
9. landscapes (representatio … (1)
10. machinery (1)
11. railroads (1)
12. rails (transit system ele … (1)
13. rivers (1)
14. rock (1)
15. scaffolds (1)
16. sheds (storage structures … (1)
17. signs (declatory or adver … (1)
18. sky (1)
19. soil (1)
20. towers (single built work … (1)
21. trees (1)
22. Visual Works (hierarchy n … (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)