Monument on Tap Series
Those Rocks Are Alive! The Science of Desert Varnish — 02/21/2026

Explore the majesty of bighorn sheep
Join retired geologist and former park ranger, Don Regan and retired geologist, Roger Smith for an unforgettable hike into the heart of desert bighorn sheep territory. Discover these magnificent creatures, renowned for their powerful horns and incredible ability to thrive in challenging environments.
While the thrill of spotting bighorn sheep and their lambs is a highlight, remember that nature operates on its own schedule. This 5-mile, 4-5 hour strenuous hike offers a chance to immerse yourself in the Monument’s stunning scenery, regardless of wildlife sightings. Bring binoculars or a spotting scope to maximize your viewing experience, along with ample water, snacks, layers, and a packed lunch.
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Explore the majesty of bighorn sheep.