Listed as a Colorado Centennial Farm in 1986, the property is associated with the history of agricultural development in Greeley and Weld County. 

Designed by Denver architect William Norman Bowman this impressive four-story building of Indiana limestone and marble was completed in 1917.  Its Neoclassical design is unique in the Greeley area.

The Von Trotha-Firestien Farm is associated with the development of irrigated farming and livestock feeding in Weld County.  Extant resources represent over 109 years of European settlement in the Bracewell area, with over 93 years directly associated with the Von Trotha and Firestien families.  The resources directly correlate to the stages of technological and economic development of agriculture in northeastern Colorado, the most important being irrigation and sugar beet cultivation, both critical to the development of Greeley and Weld County. 

The Von Gohren-Thompson Homestead – Gerry Farm is significant in the area of agriculture for its long association with the development of irrigated farming and livestock feeding in Weld County.  The property meets the registration requirements as specified in the Multiple Property Documentation Form Historic Farms and Ranches of Weld County, being associated with the historic context Irrigated Farming in Weld County, 1870 - 1940 with the farm property type represented. 

The district represents part of the evolution of the college from the Colorado Normal School to the University of Northern Colorado.  

The SLW ranch complex consists of a ranch house, coal house, ice house, barn, corral, storage, and feeding areas.  The ranch house, a large, two-story frame dwelling over a stone cellar, was built in 1888 by Robert Hall for Lyulph Ogilvy. 

The Noffsinger House is associated with inventor and businessman, Fred P. Noffsinger (1885 – 1950), who contributed significantly to the agricultural industry of Weld County and the state of Colorado. 

The two-story wood frame Italianate style house is one of the few intact residences dating from the early years of the Union Colony established by Nathan Meeker in 1870.  Edwin S. Nettleton designed several early canals that brought critical irrigation water to the farmlands and urban homesteads of the colony. 

Nathan C. Meeker, founder of Union Colony, later known as Greeley, built the two-story adobe structure in 1870. 

Architect Gilbert Stanley Underwood designed the 1929 Greeley depot.  Underwood is best known for the Rustic style buildings he designed for the Union Pacific and the National Park Service in Bryce Canyon, Zion, Yosemite, and Grand Canyon National Parks.