Timothy O’Sullivan: A man sits on a shore beside the Colorado River in Iceberg Canyon, on the border of Mojave County, Arizona, and Clark County, Nevada in 1871 during the Wheeler expedition. Lieutenant Wheeler insisted that the team explore the Colorado River by going upstream into the Grand Canyon—apparently to beat a rival, who had first gone downriver in 1869. There was no particular scientific reason to do the trip backward.
(Big up to melancholiceuphoria for sending these my way!)
