alter and damage the cultural and spiritual nature of the mountain. This legal challenge ultimately failed in 2009. Other uses In Swedish, the phrase "snow cannon" (Snökanon) is used to designate the lake-effect snow weather phenomenon. For example, if the Baltic sea is not yet frozen in January, cold winds from Siberia may lead to significant snowfall. See also Artificial ski slopes Snow grooming Kern arc – optical display caused by snowgun ice crystal clouds Pumpable ice technology References American inventions Snow Ski areas and resorts