History of Clear Creek and Boulder valleys, Colorado

Ancestry.com. History of Clear Creek and Boulder valleys, Colorado [base de données en ligne]. Provo, UT: Ancestry.com Operations Inc, 2005.Données originales : History of Clear Creek and Boulder valleys, Colorado : containing a brief history of the state of Colorado from its earliest settlement to the present time, embracing its geological, physical and climatic features, its agricultural, stockgrowing, railroad and mining interests, an account of the Ute trouble, a history of Gilpin, Clear Creek, Boulder, and Jefferson Counties, and biographical sketches.. Chicago: O.L. Baskin & Co., 1880.