For a couple of centuries, Lawriqucha had been seen as the source of the Amazon River, until in 1971 the US-American Loren McIntyre discovered the source of the ApurÃmac River to be the origin of the Amazon River which was confirmed by a 2001 expedition.
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.
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After the war, McIntyre was assigned to the Peruvian Navy as a gunnery adviser, retiring with the rank of Captain.
Sophia Loren | Loren Chasse | Loren Cass | Joey McIntyre | Velvet McIntyre | Thongchai McIntyre | Mike McIntyre | Doug McIntyre | Loren Mazzacane Connors | Eric Loren | Loren Nerell | Loren Coleman | John McIntyre | Jess Loren | Steve McIntyre | O. O. McIntyre | Loren Towle Estate | Loren McIntyre | Loren Eiseley | Loren Bouchard | Kenneth McIntyre | Ivor McIntyre | Iain McIntyre | Drew McIntyre | Donna Loren | William McIntyre (minister) | William McIntyre | Victor McIntyre | Robert McIntyre (Paralympian) | Robert McIntyre |
The National Geographic Society sent a three-man expedition to the region in 1971, headed by Loren McIntyre.