Orthodox history has it that Rainbow Bridge, the world’s largest natural stone span, was first seen by literate whites on August 14, 1909, on an expedition consisting of the rival but combined parties of University of Utah archaeologists Byron Cummings and U. S. government surveyor William Boone Douglass. After a difficult journey to discover the bridge, the Cummings group and Douglass each claimed the credit, and the controversy as to “who was first ” has continued to the present. There are contradictions and inconsistencies in eyewitness reports, and this paper reconstructs, to the extent possible, how John and Louisa Wetherill heard of Rainbow Bridge from Indians; how Cummings and Douglass learned of it; the actual events of the 1909 jou...