01 / Fortress ruins
A four-cornered fortshaped like a turtle with its head out.

The city says the Matsumae domain's Hekirichi fort was begun in June 1855 (Ansei 2) and finished that October. It stands on a plateau about 70 m high, with 17 building sites inside and six gun emplacements at the "head." Earthworks and dry moats remain, and it is a National Historic Site.
- Begun June 1855, finished October
- About 70 m above sea level
- National Historic Site, 1965

