
4,509 m
Elevation
4,509 m
Prominence
-5.7800°, 145.0294°
Coordinates
1938 — Leigh Vial (Australian colonial officer)
First Ascent
PNG's highest peak, accessible as a challenging but non-technical trek. Named after Kaiser Wilhelm by German colonists. Summit views span both coasts.
The highest mountain in Papua New Guinea is Mount Wilhelm, at 4,509 meters above sea level.
Allow 8–14 hours round trip, or two days using a mountain hut. Times vary with fitness, conditions and which trailhead you start from.
Not required if you are comfortable with exposed scrambling and mountain navigation, but a guide is a good call in poor visibility or early season.
The usual season is the local dry season — anytime outside the monsoon or rainy months. Outside that window expect snow, storms or closed access.
Helmet, sturdy boots, wind and rain shell, headtorch, and a via-ferrata set if the route is cabled.
Mount Wilhelm stands at 4,509 meters (14,793 feet).
Mount Wilhelm is located in Papua New Guinea, within the Bismarck Range.
Not yet — Mount Wilhelm is still on Martin's list of remaining country highpoints.