Mount Guiwan, Mountain summit in Alfonso Castañeda, Nueva Vizcaya, Philippines.
Mount Guiwan is a summit in the Sierra Madre mountain range that rises to 1,915 meters and features dense forests with many streams cutting through its slopes. The vegetation changes with elevation, creating different forest zones from base to peak.
The mountain was first documented and mapped in 2012 by the Nueva Vizcaya Mountaineering Society. This expedition marked the start of systematic study and recognition of the peak's terrain and ecology.
Local communities rely on traditional pathways across these slopes, showing how deeply they are tied to the mountain. Visitors passing through will notice these well-used routes woven into the landscape.
The climb takes three days starting from Alfonso Castaneda and follows the Zamora trail through mossy forest sections. Visitors should prepare for changing weather at higher elevations and wear sturdy hiking shoes.
A kilometer-long waterfall system plunges near the summit, creating a dramatic natural display. Beneath the mountain runs a tunnel that carries water from the Casecnan River to Pantabangan Dam.
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