Original sentence: Nam Co (; ) is a mountain lake in central Tibet, approximately 112km [70 miles] NNW of the capital, Lhasa.Nam Co is renowned as one of the most beautiful places in the Nyainqêntanglha mountain range.The largest of the islands is in the north-west corner of the lake, and is about 2100m long and 800m wide, rising to just over 100m in the middle.The weather at Nam Co is subject to abrupt sudden change and snowstorms are very common across the Nyainqêntanglha range.de:Nam Co
Edited sentence: Namtso (; ) is a mountain lake in central Tibet, approximately 112km [70 miles] NNW of the capital, Lhasa.Namtso is renowned as one of the most beautiful places in the Nyenchen Tanglha mountain range.The weather in Lake Namtso is subject to abrupt sudden change and snowstorms are very common across the Nyanchen Tanglha range.[This practice has perhaps stopped under the Communist Chinese control of Tibet.]  The largest of the islands is in the north-west corner of the lake, and is about 2100m long and 800m wide, rising to just over 100m in the middle