REMOVE

1. houses
2. bridges (built works)

WHAT

1. atmospheric perspective (1)
2. banks (landforms) (1)
3. barriers (1)
4. black-and-white film (1)
5. buildings (structures) (1)
6. clouds (1)
7. construction equipment (1)
8. construction sites (1)
9. cranes (equipment) (1)
10. fences (1)
11. Grand Coulee Dam (dam) (1)
12. hills (1)
13. landscapes (representatio … (1)
14. machinery (1)
15. mountains (1)
16. paths (1)
17. railroads (1)
18. rivers (1)
19. roads (1)
20. rock (1)
21. scaffolds (1)
22. sheds (storage structures … (1)
23. sky (1)
24. towers (single built work … (1)
25. townscapes (representatio … (1)
26. trees (1)
27. utility poles (1)
28. valleys (landforms) (1)
29. Visual Works (hierarchy n … (1)
30. 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)