From http://utahoutdoorfun.com/horseshoe-canyon-utahs-most-famous-art-gallery/
"Once you reach the bottom of the Horseshoe canyon follow the trail for about another 1/3 of a mile and on the east side (i.e., go LEFT of the wash) of the Canyon you’ll find the High Gallery. It is easy to miss as the trail leads you on the opposite side of the wash. It’s called the High Gallery because it is much higher on the canyon wall than the other panels.
The panel is made using an iron oxide type paint and includes figures of what seem to be people, animals and even a rain cloud. Part of the fun of looking at the panels is trying to interpret what these ancient people were trying to convey with these elaborate drawings. It is recommended you bring binoculars with you on the hike so you can get a closer look at these drawings."
"Once you reach the bottom of the Horseshoe canyon follow the trail for about another 1/3 of a mile and on the east side (i.e., go LEFT of the wash) of the Canyon you’ll find the High Gallery. It is easy to miss as the trail leads you on the opposite side of the wash. It’s called the High Gallery because it is much higher on the canyon wall than the other panels.
The panel is made using an iron oxide type paint and includes figures of what seem to be people, animals and even a rain cloud. Part of the fun of looking at the panels is trying to interpret what these ancient people were trying to convey with these elaborate drawings. It is recommended you bring binoculars with you on the hike so you can get a closer look at these drawings."
Well, you are in a canyon, so there is no way to get lost. But the first two panels are on opposite sides of the canyon and when I went there vegetation was splitting the canyon.
Closeup images: