This photo of a CJ-5 with a bed extension (possibly Kent Frost’s jeep) was taken in the Needles District of Canyonlands in 1963 or 1964. It can be viewed more in-depth at the Utah State Historical Society’s website.

CREDIT: Utah State Historical — Society https://collections.lib.utah.edu/ark:/87278/s6zw391g .. “Jeep party is shown ascending steep pitch through Needles area of projected Canyonlands National Park.”