A pelleted tea known as Cold Summit. Dong Ding is a mountain in Nantou county of central Taiwan. It was the original tea growing area and produces some of the most prized tea in Taiwan. Ali Shan (Mt. Ali) and Li Shan (Mt. Pear) are higher mountain teas with lower yields and even more sought after for the velvety smooth clean "qing xiang" light fragrance. This fragrance is almost addictive and no other oolong teas except for the Taiwan high mountain varieties have it. The prices range between US$40 and $100(Mt. Ali and Mt. Pear respectively) per 600 gm (taizhin unit) for decent grades. Prize winning grades are exorbitant in price, and merely opening a pouch or canister of these prize-winning teas can fill a house with their fragrance.