REMOVE

1. rock
2. roads
3. service stations
4. exterior views

WHAT

1. black-and-white film (1)
2. buildings (structures) (1)
3. bushes (1)
4. farms (1)
5. fences (1)
6. fields (land) (1)
7. freight cars (1)
8. grain elevators (1)
9. landscapes (representatio … (1)
10. paths (1)
11. plants (1)
12. platforms (general) (1)
13. railroads (1)
14. signs (declatory or adver … (1)
15. sky (1)
16. trains (vehicle groupings … (1)
17. utility poles (1)
18. Visual Works (hierarchy n … (1)

WHERE

1. Killam, Alberta, Canada (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1920 (1)
2. 1940 (1)
3. between 1920 - 1940 (1)