Alma Foundation

Park County Government

Park County Libraries

Town of Alma

Alma Library

Town of Fairplay

Park County Historical Society

Shawnee Historical Society

South Park City Museum

Alma Fire & Mining Museum 

Auraria Library

Buena Vista Library

Canon City Library Local History Center

Colorado College Library

Colorado State Archives

Colorado State Library

Colorado University Library

Denver Public Library

Denver University Library

Jefferson County Library

Lake County Library

Mines Libraries

Pikes Peak Library District

Prospector Library Research

Pueblo City-County Library

Salida Library

USGS Library, Denver

Breckenridge Heritage Alliance
Colorado Genealogy Project
Colorado Historical Society

Colorado’s Historic Newspaper Collection

Cripple Creek District Museum

Jefferson County Historical Society

Pikes Peak Historical Society

Summit Historical Society

             Visitor Information

Places to Stay in Breckenridge 

South Park CofC

Platte Canyon CofC

BLM General Land Office Records

JSTOR (Early Journals)

Library of Congress

National Archives

Smithsonian Institution

Colorado Railroad Museum

Denver, South Park, and Pacific Historical Society

Midland Chapter of the National Railway Historical Society