upper left of mount printed in brown ink on applied paper: "Hell's Half Mile." / This section of Ladore Canyon received the title / "Hell's Half Mile" when Major Powell and party / were on their expedition through the Green and / Colorado River Canyons in 1869-1872. / This picture was made on Kolb Brothers photo- / graphic expedition through these same canyons, in- / cluding Grand Canyon of Arizona. Their journey / began at Green River City, Wyoming, and termin- / ated at Needles, California. The time consumed / was 101 days; the descent 6000 feet, principally in / dangerous rapids, of which there were more than / three hundred. / Kolb Brothers accomplished two-thirds of their / journey, each rowing a separate boat, a third party / joining them for the balance of the trip.; by unknown hand, lower left in negative: © 1912 / Kolb Bros.; lower right in negative: © 1912 / KOLB BROTHERS; lower right of mount printed in gold ink on cover of small applied calendar: 1913
Mary and Dan Solomon, Monarch Beach, CA; gift to NGA, 2018.