Figure 9.24

Grand Canyon spring. (A) Water infiltrates permeable sedimentary rocks and collects above a localized aquiclude, forming a perched water table. A spring results where the water emerges from the side of a cliff. (B) Vasey’s Paradise is a spring that flows into the Colorado River in Coconino County, Arizona. The Grand Canyon has many such springs that form where localized aquicludes create perched water tables that abut canyon walls.
(B. © Universal Images Group via Getty Images)