1938 SLA (Salt Lake Aqueduct)
The 1938 SLA (Salt Lake Aqueduct, Utah) black and white (panchromatic) aerial project was acquired by the U.S. Bureau of Reclamation (USBR) at a scale of 1:20,000.
The 1938 SLA (Salt Lake Aqueduct, Utah) black and white (panchromatic) aerial project was acquired by the U.S. Bureau of Reclamation (USBR) at a scale of 1:20,000.