Mount Karasuo, Mountain summit in Kanagawa Prefecture, Japan.

Mount Karasuo rises to 1,136 meters (3,727 feet) within the Tanzawa Mountains and offers several hiking routes with varying difficulty levels. The slopes feature multiple paths that lead to different viewpoints and elevations across the terrain.

The name Karasuo, literally "crow's tail", comes from the mountain's shape. The kanji 烏 (crow) is often misread as 鳥 (bird), so some hikers call it Toriyama, which is incorrect. The mountain lies in the Tanzawa Ōyama Quasi-National Park, and the ridge route through it has long linked the peaks of the Omote Ridge.

The mountain is also called Kayahigo-yama or Karahigo-yama. Its kanji are often misread as "Torioyama" by hikers because the crow character 烏 resembles the bird character 鳥; the correct reading is Karasuo-yama. A mountain hut, Karasuosansō, opens on weekends, and a public toilet at the site charges 50 yen; there is no water source.

The trails are easiest to navigate in spring and fall, with proper hiking equipment essential for safely traversing the moderate-difficulty terrain. Good footwear and advance preparation are especially important to avoid slipping or tripping hazards.

From the summit, hikers can see the sprawling city landscape of Kanagawa Prefecture on one side and the natural rock formations of the surrounding mountain range on the other. This viewpoint brings together two very different worlds in a single view.