Denver Public Library

Denver Medical Library

Jefferson County Public Library

Westminster Library

Mamie Doud Eisenhower Public Library Broomfield

Adams County Library

Aurora Public Libraries

Arapahoe Library District

U. S. Geological Survey Library - Denver Providing information to organizations and individuals in the areas of geology, hydrology, cartography, biology and related fields

Denison Memorial Library Medical reference by the University of Colorado Health Sciences Center

Stephen H. Hart Library is a public research library that provides access to the research collections of the Colorado Historical Society

Bemis Public Library