REMOVE

1. Boulder Dam

WHAT

1. Pictorial map (3)
2. Separate Map (2)
3. Book Map (1)
4. Covers (1)
5. Guide Book (1)

WHERE

1. Lake Mead (3)
2. Grand Canyon (2)

WHO

1. Eddy, Gerald A. (2)
2. Grand Canyon-Boulder Dam … (2)
3. J.J. Augustin (1)
4. J.J. Augustin, Inc. (1)
5. Manning, Reginald W. (190 … (1)

WHEN

1. 1937 (2)
2. 1938 (1)