Name/Title
Colorado River- ring boltsEntry/Object ID
0008:0486Description
Ring bolt in ring below Black Canyon used to hoist steamboats up the Colorado River in the 19th century.
Left to Right: Walker R. Young, USBR construction engineer on Hoover Dam. F.S. Nickell, USBR geologist. Ralph Lowry, USBR.
(Photo appeared in Las Vegas Evening Review-Journal, Friday January 15, 1932, sec.5, p.2)Location
Location
* Untyped Location
Research roomDate
May 13, 2026General Notes
Note
2 cal x 4 1/2"
60 gene mtd
2041 over 3 12Create Date
November 23, 2022Update Date
May 13, 2026