The northern grasslands, called “Changthang” in Tibet, have an extremely cold climate. Eight or nine months a year, the whole region is frozen except for the occasional hot springs. The regions terrestrial heat spots are found in Yangpachen, eighty-seven kilometers to the northwest of Lhasa, they cover some forty km. Steam and hot geezers shoot up from the ground to over one hundred meter
TERRESTRIAL HEAT IN TIBET
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