The Northern Path is the oldest of the Danlan Old Trail System. In many historical documents, descriptions about the Northern Path can be found. It was first built for hunting and transport purposes for the common people, and with time, it became a path for warfare, inspection, and coastal patrol for the government. To ensure the safety of patrolling officers and to yield access to the general public again, more shortcuts were built later on, and these paths were soon utilized by travellers, merchants, settlers, and construction workers. Now, the government and private groups further divide the Northern Path into Tsanguangliao Old Path, Yangtingli Old Path, and Rulan Central Path, based on the area’s past.