Phu Phra Bat Historical Park spans over 5,000 rai (approximately 800 hectares) on Phu Phra Bat mountain, which forms part of the Phu Phan mountain range. The defining geological feature is the numerous large sandstone outcrops and rock shelters, which have been naturally eroded over millions of years by water and wind cycles into unique and bizarre shapes, such as the Chedi Rock, Hermit's Cave (Tham Rue Si), and Nang Usa's Tower (Ho Nang Usa). This ancient landscape provides a distinctive and unparalleled setting for the park.

The archaeological significance of Phu Phra Bat is rooted in its long history, with evidence of human habitation dating back to the Bronze Age. This evidence is most clearly seen in the prehistoric rock paintings found in more than 50 rock shelters. These paintings are estimated to be around 2,500–3,000 years old and are predominantly rendered in red pigment, depicting human figures, animals, hands, tools, and geometric symbols. It is believed that these images were part of rituals, belief systems, or daily life narratives of the ancient communities who lived here, particularly at sites like Cow-Human Cave (Tham Wua–Tham Khon) and Hermit's Cave, which are key areas of archaeological study.

Furthermore, during the 7th to 11th centuries CE (the Dvaravati period), the area was adapted into an important Buddhist sanctuary. The natural rock shelters and outcrops were carved or modified to enshrine Buddha images or to be used for religious ceremonies. A notable discovery is the large collection of Isan Boundary Stones (or Sema stones) made of sandstone, dating from the Dvaravati period to the early Lan Xang era. These stones clearly indicate the early adoption and spread of Buddhism in the Isan (Northeast) region of Thailand. Some of the Sema stones are intricately carved with patterns or Jataka tales. Core sites like Grandfather's Temple (Wat Pho Ta) and Buddha Cave (Tham Phra) demonstrate the continuity of religious practice and belief systems from one era to the next.

Phu Phra Bat is also intrinsically linked to local Northeastern folklore, particularly the Legend of Nang Usa and Thao Barot, a tale of love and separation connected to key locations within the park, such as Nang Usa’s Tower (a rock shelter believed to be her residence) and Nang Usa’s Well. These legends show how ancient peoples used imagination and storytelling to weave a narrative around the strange and wonderful natural landscape, making Phu Phra Bat not just an archaeological site but also an important source of literary and folkloric heritage. Its inscription as a UNESCO World Heritage Site in 2024, under the name "Phu Phra Bat, an ensemble of thematic stone settings," further affirms the global historical, archaeological, and geological value of this extraordinary place.

• Private Car: From Udon Thani city, take Mittraphap Road (Udon Thani–Nong Khai) to kilometer marker 13, then turn left onto Highway 2021 (Udon Thani–Ban Phue) until you reach Ban Phue District. Follow the signs for approximately 12 kilometers.

• Public Transportation: You can take a bus from Udon Thani to Ban Phue District, then take a taxi to the park.

• Dress Code: As this is a sacred site and requires walking along natural trails, please dress appropriately and wear appropriate footwear for hiking or rough terrain.

• Best Time to Visit: Visit in the early morning or late afternoon to avoid the intense midday heat.

• Preparation: Bring water, a handkerchief, and a hat, as the trail leading to the site is quite long and open.

Admission Fees:

• Admission fee (Thai nationals): 20 baht/person

• Admission fee (foreigners): 120 baht/person

• Senior citizens (60 years and older), children (under 15 years), persons with disabilities, monks, novices, and nuns: free admission

Opening Hours:

• Open daily from 8:00 AM to 4:30 PM.