This limestone layer is topped by Jurassic blueschists and overthrust, metamorphosed ophiolite. Large overthrust faults occur in areas that have undergone great compressional forces. Teton Valley is located within the Wyoming Overthrust Belt System. Portal Peak is an overthrust peak situated between the Bow Glacier and Peyto Glacier. Gap Mountain was created during the Lewis Overthrust. Wrust, Overthrust, and Skinflint have achieved some international success and recognition. It represents the "pivot point" of the Cumberland Mountain Overthrust Block. Another overthrust forms the edge of this zone where it meets the Narcean Antiform. The Peloponnesus and Crete regions of the zone are overthrust on the Plattenkalk unit. Overthrust was formed in 2008 in Ghanzi, Botswana. This overthrust was several miles (kilometers) thick and hundreds of miles (kilometers) long. During the Westphalian the rocks in the Caqntabrian zone were folded and overthrust. Overthrust is a four-piece death metal band from Ghanzi, Botswana.