Historically the area has been sparsely populated. Only some
hill tribes such as the
Wa,
Akha,
Yao,
Lahu, and the
Lisu people lived in scattered small villages across the range. Many
Shan people believe King
Naresuan was cremated in the Daen Lao Range, in the southern part of
Shan State, and his ashes interred in a
stupa in
Mongton. Until the 1990s one of the main crops at elevations above 1,000 m was
opium. On the side of the range controlled by the Thai government, construction of roads reaching remote areas and increasingly efficient policing ensured a measure of success of the
opium replacement programs in recent years. Owing to the unrest in Burma, the
National Democratic Alliance Army (NDAA) and other groups sought refuge and a base for their
insurgency in these mountains. Fighting and the ensuing persecution by the
Tatmadaw have caused part of the original population to flee. Some
refugee camps have been established for cross-border refugees on the Thai side of the range. Some
Kayah and
Karen communities, like the "long-necked Karen", are regularly visited by organized tourist groups. The
Ang Khang Royal Agricultural Station is in the mountains of the range. It was founded in 1969 by the
King of Thailand and is notable for its temperate climate that allows the cultivation of flowers and fruits characteristic of cooler climates. In March 2011 there was a magnitude 5
earthquake in the Burmese side of the range with the
epicenter north of
Chiang Rai town. There were over 70 deaths and more than hundred wounded. ==Protected areas==