The '405' in the name specifically refers to the elevation in meters at the summit marker.
Triangulation points are part of a network of survey stations used for geodetic mapping and land measurement.
The trail leading to this point is noted for its high accessibility for residents of the Guishan and Taoyuan metropolitan areas.
The ridge path provides a distinct micro-climate shift compared to the low-lying urban basin of Taoyuan.
405 Triangulation Point serves as the highest peak of Dadong Mountain in Taoyuan City, Guishan District. It is designated by a brass geodetic marker fixed into the summit terrain. The peak sits at an elevation of approximately 405 meters above sea level. The summit area offers panoramic views overlooking the urban sprawl of Taoyuan and portions of New Taipei City. The trail leading to the point involves moderate inclines and passes through secondary forest growth. It functions primarily as a destination for local hikers and trail runners. The location is an integrated part of the larger Dadong Mountain trail network.
At the summit standing directly next to the brass triangulation marker with the Taoyuan skyline in the background.
Bring trekking poles to assist with the uneven and potentially slippery dirt sections during humid weather.
Ensure you have sufficient water, as there are no vendor facilities available at the mountain summit.
Wear moisture-wicking clothing, as the area experiences high humidity levels common to the Taoyuan region.
Attempting the ascent during heavy rain or typhoon alerts due to slippery trail conditions and erosion risks.
Practice 'Leave No Trace' principles by carrying out all trash; maintain a quiet demeanor to respect local wildlife.
