There's a good reason this is one of the most popular hikes in the state of Colorado. Geologically speaking, there are few places in the world that can compare to this marvel of Mother Nature. Hanging Lake is a rare example of a lake formed by travertine deposition where the natural geologic and hydro-logic processes continue to operate as they have done for thousands of years. The site is also noteworthy for its thriving hanging garden plant community. Because of these qualities Hanging Lake was designated a National natural Landmark by the Secretary of the Interior in 2011. Since then, it's popularity has exploded and without a concerted effort to protect it, this natural wonder could be "loved to death. - See more at: http://www.visitglenwood.com/things-to-do/hanging-lake#sthash.5YpV3XRa.dpuf