REMOVE

1. trees
2. rock
3. national parks
4. 1973 June

WHAT

1. Visual Works (hierarchy n … (1)
2. civil wars (1)
3. color film (film) (1)
4. exterior views (1)
5. historic monuments (1)

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WHERE

1. Gettysburg, Pennsylvania (1)

WHO

1. Still, Patricia (1)

WHEN

1. 1973 (1)