REMOVE

1. men (male humans)
2. black-and-white film
3. construction sites

WHAT

1. banks (landforms) (1)
2. construction equipment (1)
3. cranes (equipment) (1)
4. Grand Coulee Dam (dam) (1)
5. hills (1)
6. machinery (1)
7. rock (1)
8. scaffolds (1)
9. sky (1)
10. soil (1)
11. tools (1)
12. towers (single built work … (1)
13. Visual Works (hierarchy n … (1)
14. wood products (1)
15. workers (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)