Elm is a former municipality in the canton of Glarus in Switzerland. Effective from 1 January 2011, Elm is part of the municipality of Glarus Süd. In 1799, Russian General Alexander Suvarov and his troops stayed the night in Elm before crossing Panix Pass to Pigniu on their retreat into Austria. On September 11, 1881, an avalanche caused by excessive quarrying of slate killed 114 and buried 83 structures in the municipality. Source: Wikipedia