The event takes place at the office on New Street, Matlock on Saturday 9 September between 9am and 1pm. Visitors will be given an insight into the archive conservation workshop, where documents dating back to the Middle Ages are specially treated so they can be safely handled. Family historians will be shown sources for tracing their Derbyshire ancestors - which range from parish records and school archives to lists of people claiming poor relief and the names of prisoners in county gaols during the 1800s.
New users are always welcome, and the open day is a chance to find out more.
The open day will also help local history and heritage groups tap into a new source of funding. A lottery advisor from the Local Heritage programme will be on hand at 11am to explain how local groups can access the funding.