Calf Creek Falls is a perennial waterfall in the Grand Staircase-Escalante National Monument in Utah near Boulder. The falls are heard some distance away but are hidden from view until right near the end. The creek emerges from a V-shaped channel at the end of the upper Calf Creek Canyon and cascades nearly 126 ft over a vertical cliff into a large pool several feet deep.
This spectacular setting is enclosed on three sides by colorful sandstone walls. The rocks closest to the water are covered in delicate patches of blue and green algae, and the nearby cliffs have especially pretty streaks of desert varnish, a colorful patina formed by deposition of iron-containing minerals in the evaporating rainfall, making the whole scene extremely beautiful.