REMOVE

1. forests (plant communities)
2. streets
3. Alberta, Canada

WHAT

1. exterior views (1)
2. landscapes (representatio … (1)
3. roads (1)
4. silver gelatin (1)

WHERE

1. 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)