REMOVE

1. trucks
2. hills
3. doors
4. sky
5. barns
6. farms

WHAT

1. buildings (structures) (1)
2. cliffs (1)
3. coastlines (1)
4. exterior views (1)
5. landscapes (representatio … (1)
6. rock (1)
7. silver gelatin (1)
8. trees (1)
9. waterfalls (natural bodie … (1)

WHERE

1. Alberta, Canada (1)

WHO

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

WHEN

1. 1920 (1)
2. 1945 (1)
3. between circa 1929 and ci … (1)