Located in the province of Gästrikland, the Mackmyra distillery first opened its doors in 1999. Unique in more than one respect, Mackmyra was the first distillery in Sweden to produce whisky. It produces single malts produced from Swedish barley and sources its water from an underground spring fed by the hills of Valboåsen. While part of its whisky stock is left to mature in 100 litre casks, the Mackmyra distillery also uses first-fill ex-bourbon barrels that, once filled, are stocked in a warehouse 50 metres underground in the Bodäs mine. It also uses new Swedish oak casks from a forest located on the island of Visingsö, planted over 160 years ago to provide a source of wood for the construction of military navy boats.