| 1. |  | A lookout in Sidey's Onyx Cave Canyon, 7 miles from Hot Springs, S. D. | Hot Springs (S.D.); | Caption on front: ... of Day, a lookout in Sidey's Onyx Cave Canyon, 7 miles from Hot Springs, S D. H15? Printed on front ends of mounting board : Cross Hot Springs, S.D. Scenic Views of the NorthWestern... |