Local patented mining claims, real estate transfers, and legal documents related to the operation of the county are recorded with the county. The society maintains a photograph collection of about 500 photographs, has a newspaper collection of originals and microfiche back through the 1860s.
Membership includes one hour of research, a quarterly newsletter, and free admission to the museums.
The Foothills Genealogical Society of Colorado, Inc. has been publishing original records for Gilpin, Clear Creek, Jefferson and Park counties, both as stand-alone publications and in its quarterly publication, the Inquirer, since its organization in 1980. Some material FGS has published does not exist elsewhere. Additionally, FGS has indexed 36 publications for which no indexes previously existed. Then and Now by Robert L. Brown. A good history of the Gilpin County area.