The Weilun Canal was originally excavated in the 1920s to divert water from the mountain springs specifically for rice cultivation in the lower Shilin basin.
The trail features segments of 'stone-trough' engineering where water was channeled through carved rock to overcome steep elevation changes.
Large portions of the canal are still actively managed by local irrigation associations to maintain ecological balance in the forest.
The trail's path often overlaps with historical cow-herding routes used by early settlers moving livestock between mountain pastures.
The high humidity and constant water flow along the canal have made this area a primary habitat for several species of endemic Taiwanese tree frogs.
The Gouyinqing Historic Trail follows the path of the century-old Weilun Canal, a water supply system constructed during the Japanese colonial era to support local agriculture. Located within the Yangmingshan National Park area, this stone-paved trail provides a flat, shaded route through lush forest terrain and along mountain streams. The trail is renowned for its historical irrigation features, including stone tunnels and remnants of diversion channels that once fed the Shilin farmlands. It connects the Qingtiangang Grassland to the Fengguizui area, offering a temperate climate even during warmer months due to its elevation. The canal is fed by natural mountain springs, maintaining water flow that supports a diverse ecosystem of mosses, ferns, and local amphibians. Unlike more strenuous Yangmingshan peaks, this trail focuses on historical hydrology and moderate hiking through canopy cover. It serves as an essential corridor for ecological connectivity within the park's eastern sector.
The stone-lined tunnel entrances where the canal emerges from the hillside provide the most distinct historical architecture shots.
Wear waterproof hiking shoes, as the canal-side path can be permanently damp and slippery even without recent rain.
Bring a light rain shell, as weather patterns in this section of Yangmingshan change rapidly, often bringing localized mist or light drizzle.
Check park trail status updates before departure, as steep terrain occasionally causes localized landslides during typhoon season.
Attempting the trail during heavy rain, as the stone paths become extremely treacherous; walking off-trail, which poses a risk of slipping into deep drainage gullies.
Occasionally closed during peak typhoon season or following significant seismic activity for trail integrity inspections.
Stay on the marked path to protect the delicate canal-side moss ecosystems; keep noise levels low to avoid disturbing wildlife.
