Legend Rock Petroglyph Site | Thermopolis

Legend Rock Petroglyph Site is an archaeological location in Thermopolis, Wyoming, USA. It features a concentration of ancient rock carvings on sandstone formations.

Visual Characteristics

The site consists of sandstone outcrops exhibiting a rough, weathered surface. Petroglyphs are etched into this rock, appearing as darker, incised figures against the lighter sandstone. The formations are generally low-lying, with no significant vertical structures.

Location & Access Logistics

Legend Rock Petroglyph Site is located approximately 10 miles west of Thermopolis, Wyoming. Access is via US Highway 20 West, turning north onto a gravel road marked "Legend Rock." The gravel road is approximately 2 miles long and suitable for most vehicles in dry conditions. Parking is available at the site entrance. No public transport services this location.

Historical & Ecological Origin

The petroglyphs are attributed to the Shoshone and Crow tribes, with dating estimates ranging from 1,000 to 4,000 years old. The exact purpose of the carvings is debated but likely includes spiritual, ceremonial, or record-keeping functions. The formations are part of the Wind River Formation, composed of sedimentary rock.

Key Highlights & Activities

Observation of petroglyphs is the primary activity. Visitors can walk among the rock formations to view the carvings. Interpretive signage provides information on the types of figures and their potential meanings. No other organized activities are offered on-site.

Infrastructure & Amenities

Basic amenities include a small parking area and a limited number of interpretive signs. There are no restrooms, shade structures, or food vendors at the site. Cell phone reception is unreliable.

Best Time to Visit

The best time of day for viewing the petroglyphs is mid-morning or late afternoon when the sun's angle creates shadows that highlight the carvings. The best months for visiting are May through October, avoiding winter snow and ice. The site is accessible year-round, weather permitting.

Facts & Legends

One local legend suggests that the carvings depict celestial events or ancient tribal stories passed down through generations. A specific tip for visitors is to look for the "Medicine Wheel" petroglyph, a recurring symbol in Native American art.

Nearby Landmarks

• Thermopolis Hot Springs (8km East)
• Wyoming Dinosaur Center (10km East)
• Bighorn River (12km East)
• Shoshone National Forest (Access points vary, generally West/Southwest)