In the past, only a few local peasants from the surrounding region dared to access the Pha Taem area. [1] Because it is believed that Pha Taem is a prohibited location, and the mountain is protected by the holy.[1] Pha Taem is renowned as the "Mountain of Death," and anybody who trespasses risks becoming ill or, worse, dying.[1] The Pha Taem region has been widely publicized.[1] Following that, professors and students from Silpakorn University Department of Archaeology researched and uncovered prehistoric ancient paintings 3,000-4,000 years old at Pha Taem, Ban Kum, Huai Phai sub-district, Khong Chiam district, Ubon Ratchathani province.[1] In the original dialect, "Taem" refers to a drawing, painting, stamping, or any other action that uses color to create images, marks, or symbols.[2] It is the site of prehistoric paintings dating from 3,000 to 4,000 years old, divided into four groups, the longest of which is 180 meters long and contains over 300 images.[2] Furthermore, Pha Taem is surrounded by densely packed trees. [2]As a consequence, they began to draft a memorandum from the department dated May 26, 1981 and requested to the Royal Forest Department that the forest and mountain in the Pha Taem zone be designated as a national park.[1] It was designated as the 74th national park of Thailand.[3] Pha Taem National Park is approximately 340 square kilometers in size.[2] The district of Khong Chiam encompasses the area. Ubon Ratchathani Province's Si Mueang Mai District and Pho Sai District have fertile forest conditions.[1] a variety of wild animals There are numerous natural beauty features in the area, including Pha Chan, Soi Sawan Waterfall, Sao Chaliang, Tham Patihan, Phu Na Tham, and others.[1] There have also been discoveries of ancient paintings.[1] Prehistoric times, approximately 3,000-4,000 years old, in the Pha Kham, Pha Taem, Pha Chek, and Pha Moei areas, and currently a national park.[1] It is designated as a national park with the Mekong River, which forms the border between Thailand and Laos, is the longest national park boundary in Thailand.[1] allowing for a view of the forest on the Laos side.[1]