The Fort Mojave Twins are a pair of geoglyphs that represent large human figures that possibly date to 900 BCE. The twins are said to signify good and evil. The larger of the two has a massive head with attached limbs and is believed to represent good. It may also be representative of an ancient god.

The other twin has a smaller head with detached arms and signifies evil. The Mojave Desert along the Colorado River is the only place where figures of this type exist in North America. The Twins are located south of Fort Mojave and east of the Avi Casino, overlooking the river. 

They can be accessed by heading west off Gardena Road in Fort Mojave and following the dirt road north and west to the fenced-off area at the edge of the bluffs. Do not enter the area beyond the fences.