Hirogawara-sanso (広河原山荘)

Hirogawara-sanso is the key base lodge + campsite at Hirogawara, the primary trailhead for Mt. Kita (Kitadake, 3,193 m) in Japan’s Southern Alps (Akaishi Mountains). It’s not a ridge hut—it’s the logistics anchor where most Kitadake itineraries start: you arrive by bus, sort permits/route plans, sleep low, and then head into the high mountains early.