Historic SDG Jail

11 Water Street West, Cornwall, ON K6J 1A1

Historic SDG Jail in Cornwall, built in 1833, once operated as a jail until 2002. Now a preserved heritage site, it offers tours and events that reveal the realities of historic incarceration in one of Ontario’s oldest correctional facilities.

Historic 1833 jail in Cornwall offering tours and exhibits on Ontario’s correctional history and heritage.

Updated · Mis à jour — May 7, 2026

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