REMOVE

1. roads
2. rock
3. construction equipment
4. construction sites
5. sunlight

WHAT

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