Ningtianshan is located in a valley at the south of Wanli Creek, the north of Matatang Creek, and the east of the Central Range. It was the largest timber gathering site in Eastern Taiwan's mountain forests. Although not the largest forest area in Taiwan, it retained the most complete record of past environmental conditions, settlements, and lifestyle culture. During the Japanese colonial period, a timber transportation railway of 68 kilometers was constructed here, reaching an altitude of 2,500 meters and experiencing a period of great prosperity, leaving behind many architectural structures, shops, theaters, and other cultural relics. After the logging ban in 1987, the high-quality trees in this area finally regained a chance to recover, gradually restoring their former lush natural landscape. Today, Ningtianshan combines the natural atmosphere of mountain forests with a rich cultural art ambiance. Visitors may walk along trails to explore the old buildings amidst thick emerald greenery, immerse themselves in past golden eras, revisit locations like the auditorium and theater facilities to trace predecessors’ footsteps and artifacts they left behind. Additionally, there are opportunities to listen to staff from the Ningtianshan Cultural and Historical Studio narrating "Sanka’s Story."