Preston Island is a former artificial island in the Firth of Forth, Scotland. The reclaimed land was once used for salt production, using local coal. It is part of Fife.
Two further coal shafts were in development when a fatal firedamp explosion occurred in 1811, after which the mine was closed.[2][4]
Salt production continued for some decades, under lease from Preston.[3] The buildings later housed an illicit distillery.[1] Several well-maintained ruins remain.