Mount Shiro

Overview

Shiroyama is a 375-meter mountain in Midori Ward, Sagamihara City, Kanagawa Prefecture, also known as Tsukui-Shiroyama. Its summit once held the medieval mountain castle of Tsukui, whose history it still conveys. Sitting on the south side of Lake Tsukui, formed by the Shiroyama Dam, the mountain and its surroundings are maintained as the Kanagawa Prefectural Tsukui-ko Shiroyama Park, a popular spot for combining hiking with a walk through history.

Highlights

• ●Summit area with remains of the medieval Tsukui Castle
• ●An easy 375-meter hiking course
• ●Views of Lake Tsukui spreading below
• ●Managed nature as the Prefectural Tsukui-ko Shiroyama Park

History

Tsukui Castle is said to have been built here by the Miura clan during the Kamakura period. In the Warring States era it served as the residence of retainers of the Later Hojo clan, functioning as a strategic point against the Takeda of Kai. It fell during Toyotomi Hideyoshi's Odawara Campaign in 1590 and was subsequently abandoned. Remains such as baileys and trench cuts still survive, and the lush park allows visitors to imagine its former appearance.

Map

35.5831, 139.2786 · Wikidata

Suggested itinerary

1. 1Take a bus from the Hashimoto Station area to Tsukui-ko Shiroyama Park
2. 2Hike from the trailhead toward the Shiroyama summit
3. 3Explore Tsukui Castle remains such as baileys and trench cuts
4. 4Enjoy views of Lake Tsukui from the summit and the park

Did you know?

💡 Sagamihara also has another Shiroyama, the 670.3-meter Kobotoke-Shiroyama that straddles the border with Hachioji, Tokyo, sharing the same name. Being aware that this one is the Tsukui Shiroyama helps avoid confusion when choosing your destination.

Nearby spots