Monument

The Monument of the Death of Inspector Koyama and Goto, and Police Officer Baratsu of Karenkou Prefecture is located on the mountainside by the Batongguan Traversing Historic Trail, about 50 meters north from Ying Bridge (No. 7 Bridge). There were originally two wooden pillars commemorating the two inspectors who were killed in an ambush on April 11, 1922. The indigenous police officer who died in the same incident was not listed. Therefore, when the pillars were replaced with a reinforced concrete obelisk in the 1930s,  the names of the three victims were placed side by side.

The Monument of the Death of Police Officer Rinowusan of Karenkou Prefecture is located beside the Batongguan Traversing Historic Trail, about 50 meters north of the Shisanli Police Post, about 1,730 meters above sea level. It was originally a wooden obelisk, and later converted into a reinforced concrete obelisk-shaped monument. It is to remember Rinowusan, a policeman from the Xinkang Police Post, who was killed and beheaded on October 31, 1920. However, due to his lower rank, there were no relevant records of his life and events. His death on his duties was also not recorded in the "Taiwan Police Remains Records" that was compiled during the Japanese occupation.

The Monument of the Martyrs is located about 1,250 meters above sea level at the Dafeng entrance, where the police officers held welcome and farewell ceremonies. To get here, walk past the Dafeng Railway Bridge and walk up a sloping path on the Batongguan Traversing Historic Trail. Entering from this point is the Dafeng district. The Monument of the Martyrs is made of natural stone with a pebble base. According to the shape, materials and inscriptions of the stele, it is speculated that this stele mainly commemorates the victims of the Dafeng incident, although the inscription behind it is not very clear.

The Monument of the Death of Sergeant Niki Sanjuro of Karenkou Prefecture is located on the side of the ridge valley by the Batongguan Traversing Historic Trail, about 1,770 meters above sea level, on the south side of the first Eshira railway bridge, which is about 10 minutes away from Eshira Police Post.

Originally, there were two pillars erected, one was to commemorate the death of Sergeant Niki and the other for Police Officer Lai Minghe, who were killed by gun ambush in the dense forest on October 23, 1920. They were on duty supervising the second phase of the construction of Batongguan Traversing Historic Trail. Later, it was converted into one reinforced concrete obelisk-shaped monument in the mid-Japanese occupation in the 1930s, but the inscription only bears the name of Niki Sanjuro.

The Monument of the Death of Police Officer Sura and Ansen of Karenkou Prefecture (now Hualien County) is located beside the Batongguan Traversing Historic Trail. It is about 100 meters away from the Sasarabi Police Post, and about 1 km away from Dumas Police Post in the east.

The reinforced concrete obelisk-shaped monument was set up by the Governor-General in Taiwan to commemorate two police officers, Sura and Asen, who were killed in an attack on February 17, 1921. The two officers were ordered to patrol and transport supplies to the Dafeng Police Post, and on return to Dumas Police Post in the afternoon, they were killed while patrolling nearby.