Petroglyphs are prehistoric ?rock arts? that continue to amaze and puzzle experts. Scientists can only provide educated theories on what, when, and why these rocks exist in the first place. One of these countless ancient ruins left by prehistoric North American ancestors is the Legend Rock Petroglyph in Hot Springs County, Wyoming.

The Legend Rock Petroglyph Site can be found 20 miles NW of Hot Springs State Park, which is located in the curiously named city of Thermopolis in Wyoming. The Legend Rock is a very important piece of archeological discovery. It contains hundreds of distinct individual petroglyphs written all over the face o the rock. Although years of human neglect and natural erosion has taken its toll on the rock, much of the art are well-preserved for the public to see. About 300 petroglyphs can be viewed by the visitors, including some of the oldest and prime examples of Dinwoody Rock Art. Like most petroglyphs, experts could only speculate on what the rock are for and where they originated.

The site was added to the National Register of Historic Places on July 5, 1973.