Mae Chaem is a district (amphoe) of Chiang Mai Province in northern Thailand. It was created in 1908 consisting of the tambons Mae Thap, Tha Pha, Chang Khoeng, and Mae Suek split off from Chom Thong. In 1917 it was renamed Chang Khoeng, as the district office was in that tambon. In 1938 it was reduced to a minor district (king amphoe) and was subordinate to Chom Thong District. In 1939 it was renamed Mae Chaem. In 1956 it was upgraded to a full district. In 2009 the northern part of the district was split off to form the new district, Galyani Vadhana. Neighbouring districts are (from the north clockwise) Galyani Vadhana, Samoeng, Mae Wang, Chom Thong and Hot of Chiang Mai Province, and Mae Sariang, Mae La Noi, Khun Yuam, Mueang Mae Hong Son and Pai of Mae Hong Son Province.
Thailand's highest mountain, 2,565 meters (8,415 feet) high Doi Inthanon, in the Thanon Thong Chai Range, is in Mae Chaem District.
The district is divided into seven sub-districts (tambon), which are further subdivided into 85 villages (muban). Mae Chaem also has sub-district municipality (thesaban tambon) status and covers parts of tambon Chang Khoeng. There are a further seven tambon administrative organizations (TAO).

Source: Wikipedia