The Nunn Water Tower, a 50,000-gallon steel tank on four steel legs with a platform and guard rails, was constructed in 1921 and distributes water to town water users.

The 1911 school building served the educational needs of the agricultural community near Milliken for almost fifty years.  Its intact setting, associated teacherage, itself a rare survivor of rural education, and privy further enable the property to convey its rural heritage.  The building exhibits typical elements of rural schools, such as the narrow windows, bell tower, one-room interior, and the entry vestibule.

The Milne Farm is an historic agricultural complex that encompasses a farmhouse, agricultural buildings, and irrigated fields.  The Edwardian Vernacular style two-story red brick farmhouse was built in 1892 by James Grant Milne, a Scottish emigrant.

Morse H. Coffin built the ranch beginning in the early 1880s.  The complex includes nine farm structures and a quarry.  The vernacular Second Empire style house was built in the early 1880s using sandstone from the nearby quarry. 

The Jurgens Site, a Paleo-Indian Plano Period multiple activity site, is represented by a long-term camp or habitation site, short term camp site, and a butchering and processing area for animals obtained in a small mass kill. 

The circa 1903 Prospect Valley School, with circa 1920 and 1940 additions, provided elementary education for several generations of students in the Prospect Valley area of southern Weld County.

Harvey J. Parish commissioned the construction of this house at the apex of his career in 1914.  In 1902, Parish platted the town of Johnstown, which he named in honor of his son, and he served as the community’s first mayor.

Constructed over the Little Thompson River by Gardner Brothers in 1938, the bridge is associated with the development of US Hwy. 87 north of Denver.

The Jared L. Brush Ranch began in 1860 as one of the first ranches in the Big Thompson Valley.  The barn was constructed in 1865 and continues to serve as an integral part of an operating agricultural complex.

The Cora M. Morris & Co. Building began as a mercantile store in 1888.  After a fire destroyed the front portion of the building in the mid-1930s, new owners and the community repaired and converted it to a community-gathering place.