REMOVE

1. construction sites
2. hills
3. workers

WHAT

1. banks (landforms) (1)
2. black-and-white film (1)
3. construction equipment (1)
4. cranes (equipment) (1)
5. Grand Coulee Dam (dam) (1)
6. machinery (1)
7. men (male humans) (1)
8. rock (1)
9. scaffolds (1)
10. sky (1)
11. soil (1)
12. tools (1)
13. towers (single built work … (1)
14. Visual Works (hierarchy n … (1)
15. 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)