#wilsonarch south of Moab, taken for a geology class in the late 1940s, so it is noted the upper half is of the #entradaformation and the lower half is #carmelformation. #dadsblackandwhitephotos #bnwphoto (at Wilson Arch) https://www.instagram.com/p/BsvaNxblo8k/?utm_source=ig_tumblr_share&igshid=1dtuk5mpuovrv














