Iceberg A-68 calved from the Larsen C Ice Shelf in July 2017. Down from the Kungey Alatau the glacial glaciers also calved into the Issyk Kul lake. Iceberg B-17B measured approximately and calved off the Ross Ice Shelf in 1999. In September 2019, a large iceberg known as D-28 calved from the ice shelf. A large chunk estimated to be calved off the glacier in August, 2010. Then the Larsen B Ice Shelf calved and disintegrated in February 2002. Free-roaming range cattle calved, were moved between grazing lands, and driven to market by cowboys. Since 1900, about 90% of Ellesmere Island's ice shelves have calved and floated away. The Ayles Ice Shelf calved entirely on August 13, 2005. In 2005, nearly the entire shelf calved from the northern edge of Ellesmere Island. During the collision, a fragment (i.e. Tolo Terrane) was calved off from the Qiangtang Terrane. It calved most recently in 2013, around a decade earlier than expected.