Manuscripts
Lynn Roberts in his helicopter working as the elevator at the Marble Canyon Dam site. The cable across the river holds the air line from the compressors at the rim. The view is downriver. Bill Belknap is in his Sportyak under the cable
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![Lynn Roberts' helicopter and the air line suspended on a cable at the Dam site at Mile 39 1/2. Downriver. Tunnel dum[p] at left](/_next/image?url=https%3A%2F%2Frail.huntington.org%2FIIIF3%2FImage%2F22APN4INP46J%2Ffull%2F%5E360%2C%2F0%2Fdefault.jpg&w=750&q=75)
Lynn Roberts' helicopter and the air line suspended on a cable at the Dam site at Mile 39 1/2. Downriver. Tunnel dum[p] at left
Manuscripts
mssMarston papers V050/0117
Drilling equipment used in anchoring the cable rigs at the Rim of Marble Canyon. Lower Marble Canyon damsite, Mile 39
Manuscripts
mssMarston papers V050/0091.01
Drilling equipment used in anchoring the cable rigs at the Rim of Marble Canyon. Lower Marble Canyon damsite, Mile 39
Manuscripts
mssMarston papers V050/0091.02
