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Colorado School of Mines established at Golden.
Martin Leyden and fellow miners Patrick Stanton and Patrick Kelly die when Leyden Creek Coal Mine fills with deadly firedamp gas.
The Colorado Central Railroad line completed. First train arrives in Jefferson County, at Golden City, from Denver.
First town plat of Arvada filed. Originally, the settlement was known as Ralston Point.
Town of Golden City incorporated.
Matthews Hall divinity school opens.
Town of Morrison established; town plat filed November 28, 1874.
The narrow gauge section of the Colorado Central Railroad, linking Denver and Golden with Central City through Clear Creek Canyon completed, is first railroad into the Colorado mountains.
Last documented encampment of Ute tribe, led by Chief Colorow, in Jefferson County. Colorado School of Mines Geology Museum established as Jarvis Hall Museum by Arthur Lakes.
Golden Cemetery established by the town of Golden as a municipal cemetery. Listed on the National Register of Historic Places in 2012.
Coors Brewing Company founded in Golden by Adolph Coors Sr. and Jacob Schueler. Coors bought out his partner on May 4, 1880.
Colorado becomes 38th state.
Dinosaur fossils discovered in Morrison Formation along the Dakota Hogback near the town of Morrison in Jefferson County; this was the first major, and one of the most important, dinosaur discoveries in North America.
First Jefferson County telephone service started by Golden Telephone & Dispatch Company.
Golden Opera House, Jefferson County’s first theatrical venue, opens.
Administration & Courts Facility 100 Jefferson County Parkway Golden, Colorado 80419 (303) 279-6511
© 2013 Jefferson County, CO.