Observation Rock Sunset A spectacular sunset from the top of Observation Rock along the edge of the Orange Cliffs in the Glen Canyon National Recreation Area. Published on May 29, 2017 Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)