Developed by Charles L. Hall, the Colorado Salt Works was the only salt production facility of its kind constructed in Colorado.  Located on a 33-acre site adjacent the Salt Works Ranch agricultural district, the intact wood frame barn and the partially collapsed kettle house, a large two-story L-shaped building, serve as visual reminders of one of Colorado’s earliest industrial enterprises. 

The ranch is closely associated with the history of agriculture in the South Park area of Park County.  The buildings and structures at the ranch represent the variety of agricultural functions and construction techniques from 130 years of cattle, sheep, and hay ranching.  The headquarters buildings typify functional, unadorned wood-frame and log construction techniques using locally available materials of the early 20th century. 

Built in 1879 by Leonard Summer, adjacent his brewery operation, the one-story building is of red sandstone quarried near Red Hill Pass.

Constructed by Leonard Summer in the mid-1870s, the primarily stone two-story building was associated with the Summer Saloon.  Since such local saloon owners usually imported their stock from Denver, the brewery represents a somewhat unusual undertaking in a small mining community. 

Constructed in 1874, the small white painted, board and batten church is an excellent, well preserved example of the Carpenter Gothic style. 

The South Park City Museum is an intact mid-twentieth century outdoor museum interpreting a frontier mining community, significant for its association with Park County tourism, the Rush to the Rockies gold-discovery centennial celebration of 1958, and early historic preservation efforts in Park County. 

Located in Court House Square, this two-story red sandstone building has a raised basement and was constructed in 1874.

The 1922 Fairplay Hotel is the largest and longest lived hotel in town.  The hotel has provided accommodations and meals for travelers, tourists, sportsmen, workers, and the local community to the present day.  With ample public rooms and a central location (Fairplay is the county seat), the Fairplay Hotel has hosted a variety of meetings and functions such as dances and wedding receptions, as well as fraternal, livestock, and other local organizations.

Como School operated from the 1883 construction of the original, wood frame grade school building through 1948, the last year of its use as a public educational facility.  In addition to the hipped roof grade school, there is a small gabled roof building that was moved to the school grounds during the early 1930s to serve as a high school.  

The site contains the six-stall stone roundhouse, the I-plan two-story brick hotel, and the one-story frame depot.  The roundhouse and depot date to circa 1880 and the hotel to 1897.