Aspen's natural beauty is considered a treasure, with Maroon Bells and Maroon Lake being notable examples. The geology that formed these landmarks also led to the discovery of silver deposits in the area.

The definition of treasure has evolved over time, and the area's geological features have been documented through various means. A famous photographer took the first photo of Maroon Bells in the 1870s as part of the Hayden survey, which aimed to inventory the West.

Further details about the survey and its findings are available, providing insight into the region's geological history and the discovery of its natural treasures.