Album caption and index card: The foreground rocks show little change in 102 years since the first photograph of this pair (photo no. 41) was taken, near the mouth of Lava Canyon 105.4 kilometers below Lees Ferry. On the opposite shore, the bare sandy beach of the previous century is now covered by sandbar willow and saltcedar with minor inclusions of seep willow and arrowweed. The zone with western honey mesquite and catclaw is little changed and, although not discernible in this view, is separated from the riparian vegetation bordering the river by an open zone of mainly ephemeral plants. Grand Canyon National Park. Coconino County, Arizona. 1974.
Published as Figure 47-B in U.S. Geological Survey. Professional Paper 1132. 1980.
