Exploration and production geologist Howard G. Coopersmith has conducted extensive research related to the international diamond industry, and provided the impetus for the development of the Kelsey Lake Diamond Mine located near the Colorado-Wyoming border. This collection includes Coopersmith’s extensive reference materials, project files, published and unpublished papers, maps, photographs, and electronic files.

Recent Submissions

  • Coopersmith scrapbook 

    Contributor:Coopersmith, Cynthia M.
    Includes photos from Howard Coopersmith's childhood and early married life as well as newsclippings and magazine articles about Coopersmith's involvement with diamond prospecting and the development of the Kelsey Lake ...