Montgomery researched the claims of evidence for Noah's Ark for two years. His quest took him through two thousand years of reports, sightings, and claims, and on two ascents of Mount Ararat: in August 1970 on the South Face and in summer 1971 on the North Face. His effort to collect data and sift fact from fiction yielded his work The Quest for Noah's Ark. In the introduction he writes that he merely presents the facts and allows the readers to come to their own conclusions. He was a contributing scholar on two film documentaries on the topic: Noah's Ark and the Genesis Flood (1977) and In Search of Noah's Ark (1976).