The Mill City House represents a method and period of construction as a rare intact one and one-half story Pioneer Log building associated with Colorado's early mining settlements. 

The local community built the school in 1909, and it served the educational needs of the area until 1959.

Replacing a 1902 wood frame building, the circa 1920 Westlake School served as an educational and social facility for rural portions of western Adams County through 1990. 

The 1909 Broomfield Denver & Interurban/Colorado & Southern Railway Depot is architecturally significant as a good example of an early twentieth century combination passenger and freight railroad depot with living quarters for the station agent.

The 1908 depot is associated with both passenger and freight railroad transportation in the Las Animas area.  It is a good intact example of the Santa Fe Railroad’s Brick Standard Plan depot design.

The post office building is associated with President Roosevelt’s New Deal legislative agenda and the efforts of the federal government to bring America out of the Great Depression.  

The 1920 building is an example of the "Akron Plan" of church design popular for a short period of time in the early 1900s.

Constructed between 1909-1918, the building’s brick and concrete block masonry exterior, simple Neo-Classical design incorporating Masonic symbols, and typical interior arrangement and finish reflect standard Masonic-related construction adapted to a small town setting in the early 20th century.

The 1889 stone building is a good example of late 19th century commercial architecture and represents the return of prosperity to this agricultural community following the depression of the early 1890s.  

Built in 1900, the house is an excellent local example of the Queen Anne style as applied to a moderate sized, 1½ story frame dwelling.