On the 10/11 May 1861, the town was devastated by a fire that was fanned by a violent Föhn or south wind, rushing down from the high mountains through the natural funnel formed by the Linth valley. The total loss is estimated at about half a million sterling, of which about £100,000 were made up by subscriptions that poured in from every side. About two-thirds of Glarus (593 buildings) were destroyed in the big fire. After this incident, Glarus was rebuilt in block fashion according to construction plans by Bernhard Simon and Johann Caspar Wolff.