Formerly, Pang Oung used to be an illegal opium planting area for hill tribes and was always trespassed by smugglers. His Majesty King Bhumibol Adulyadej solved this problem by forming a group of villagers, supporting their agricultural economics, conserving natural resources, and building a reservoir in Pang Oung. Nowadays, there are many different types of economical plants being grown by hill tribes, such as avocado, persimmon, Chinese pear and Chinese bayberry. Due to its cool climate, the village is normally decorated with rose, hydrangea, and orange trumpet. Not only focusing on agricultures, but also on conserving endangered animals such as Laew small green frog. Consequently, Pang Oung is definitely an interesting place for nature-lovers.