REMOVE

1. landscapes (representations)
2. coastlines
3. Alberta, Canada
4. 1920
5. 1945

WHAT

1. buildings (structures) (1)
2. cliffs (1)
3. exterior views (1)

WHO

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

WHEN

1. between circa 1929 and ci … (1)