REMOVE

1. hills
2. trees
3. cranes (equipment)
4. railroads
5. workers
6. fields (land)

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. beards (1)
4. black-and-white film (1)
5. cardigans (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1975 (1)
2. 1980 (1)
3. between 1975 - 1980 (1)