REMOVE

1. rock
2. hills
3. spouses
4. sky
5. 1999
6. 1966

WHAT

1. bridges (built works) (1)
2. exterior views (2)
3. lakes (bodies of water) (1)
4. landscapes (representatio … (2)
5. plants (1)
6. reflections (perceived pr … (2)
7. silver gelatin (2)
8. trees (2)
9. water (2)

WHERE

1. Alberta, Canada (2)

WHO

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

WHEN

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