REMOVE

1. barns
2. sky
3. plants
4. trees

WHAT

1. exterior views (1)
2. landscapes (representatio … (1)
3. mountains (1)
4. roads (1)
5. rock (1)
6. silver gelatin (1)
7. tunnels (1)
8. utility poles (1)
9. Visual Works (hierarchy n … (1)

Less

WHERE

1. Alberta, Canada (1)
2. Pacific Northwest (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)