The 1922 Chromo School served the area’s children from 1922 to 1954, and it continues to function as a community center.

The caboose is associated with the Denver & Rio Grande and Denver & Rio Grande Western railroads. 

The twin pinnacles, prominent natural landmarks, were home and sacred shrine to an Ancestral Puebloan people. 

The 1913 bridge is an example of construction considered quite advanced for its time.  A Kansas company built it using rivets, rather than pinned connections.

Founded in 1870 by Columbia Masonic Lodge No. 14, it is Boulder’s oldest cemetery.  The more than 3,000 grave markers represent a variety of styles, materials and degrees of craftsmanship that in many cases reflect the socioeconomic status of those commemorated.  

During the first part of the 20th century, Chautauquas served as a medium for the dissemination of popular culture. 

Built in 1898, Locomotive No. 30 is the only surviving locomotive that operated on Boulder County’s Switzerland Trail of America route.  The locomotive and its tender also are associated with the Colorado & Southern and the Rio Grande Southern railroads.  

Built in 1898, the auditorium was designed by Denver architects F.E. Kidder and E.R. Rice. 

Designed by architect Thomas MacLaren, the library opened in 1907 and is a fine example of the Neoclassical Revival style.

Completed in 1910, during James Knox Taylor’s tenure as Supervising Architect, the building is a notable interpretation of Classical and Renaissance Revival styling.