REMOVE

1. streets
2. flags
3. plants
4. colleges (buildings)

WHAT

1. banks (landforms) (1)
2. barriers (1)
3. black-and-white film (1)
4. close-up views (1)
5. construction equipment (1)
6. construction sites (1)
7. cranes (equipment) (1)
8. exterior views (1)
9. Grand Coulee Dam (dam) (1)
10. hills (1)
11. machinery (1)
12. mountains (1)
13. roads (1)
14. rock (1)
15. rubbish (1)
16. scaffolds (1)
17. sky (1)
18. soil (1)
19. towers (single built work … (1)
20. trees (1)
21. utility poles (1)
22. Visual Works (hierarchy n … (1)

Less

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)