Formation Springs Preserve The unique geology of this area makes it a fascinating stop on the byway. In 1989, 160-acres surrounding Formation Springs was turned into a preserve. The preserve features crystal pools and a wetland complex at the base of Aspen Mountain.      The terraced pools at Formation Springs are formed by cold springs that feed into them and deposit high concentrations of calcium carbonate. The pools are a place to stay for wintering wildlife, and provide a natural point of interest both geologically and biologically. The preserve also include Formation Cave that stretches for 500 feet. Panorama of Formation Springs,  Soda Springs Chamber of Commerce