REMOVE

1. utility poles
2. rock
3. bushes
4. 1920
5. 1940

WHAT

1. banks (landforms) (1)
2. black-and-white film (1)
3. freight cars (1)
4. hills (1)
5. landscapes (representatio … (1)
6. railroads (1)
7. sheds (storage structures … (1)
8. soil (1)
9. trains (vehicle groupings … (1)
10. trees (1)
11. Visual Works (hierarchy n … (1)
12. water tanks (1)

WHO

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

WHEN

1. between 1920 - 1940 (1)