[2] McIntyre attended Seattle's Cleveland High School, and later graduated from the University of California, Berkeley, where he studied Latin American culture.
After his studies McIntyre joined the Merchant Marine, and when World War II broke out, he served for four years with the U.S. Navy in the Pacific theater.
During his Merchant Marine and Naval careers, McIntyre circumnavigated the globe, visiting countries such as Japan, China, Manchuria, Singapore, India and Brazil.
Over the following years McIntyre's photos and articles would appear in more than 500 publications, including Time, Life, Smithsonian, GEO, Audubon, and South American Explorer.
[8] In 2015-2016 British theatre company Complicité staged a one-person performance by Simon McBurney called The Encounter, which was based on the book "Amazon Beaming", about McIntyre becoming lost in the Javari Valley in Brazil and his experiences with locals.
[9] A posthumous exhibition of McIntyre's photography,WESH "As Similar as Possible: The Portrait" ("'O Mais Parecido Possível: O Retrato"), was organized at the Pinacoteca in São Paulo, Brazil, from October 2012 to February 2013.
It was the brook named Carhuasanta located in the Apurímac Region of Peru, fed by the winter snows of the mountain Mismi (5,597 m), some 6,400 kilometers from the Atlantic Ocean.
The expedition traveled from the mining town of Cailloma by four-wheel drive, then climbed the Apachita Trail and traversed onto Mismi, taking in Kiwicha and Puma Chiri.