Historical Marker
Soda Dam
This spectacular formation has built up over the centuries by deposits of calcium carbonate from a spring that bubbles to the surface at this point. The river flows under a dome that is still building. The dam is 300 feet long, 50 feet high and 50 feet wide at the bottom.
New Mexico was the birthplace of several famous figures in American history, including the outlaw Billy the Kid, the physicist J. Robert Oppenheimer, and the astronaut Harrison Schmitt, who was one of the last men to walk on the moon.