REMOVE

1. scaffolds
2. construction sites
3. tools
4. machinery
5. construction equipment

WHAT

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