The Salt Works Ranch agricultural district encompasses 128 acres and includes the original homestead site settled by Charles L. Hall in 1862. A wide variety of primarily log and wood frame buildings and structures typical of a successful large-scale ranching operation remain on the site. Of particular interest is the Second Empire style main house which dates from the early 1870s.
The property is also important for its association with Thomas McQuaid, a son-in-law of Hall, who played an active leadership role among Colorado ranchers. McQuaid oversaw operation of the ranch from 1911 until his death in 1965. During his tenure, the ranching operation expanded to cover more than 87,000 acres. This still working ranch was recognized as a Colorado Centennial Farm. Listed under Historic Ranching Resources of South Park, Colorado Multiple Property Submission.