Concrete[1] was one of three factory towns around the present-day Holcim plant in eastern Fremont County, Colorado, United States. The other two are Portland and Cement. All three are located south of Penrose, Colorado, and east of Florence, Colorado, along State Highway 120.
The town was founded in 1905.[2] Its elevation is 5036abbr=offNaNabbr=off.
See also: Early history of Fremont County, Colorado.