Inō Tadataka Memorial Museum

photo by そらみみ · CC BY-SA 3.0

photo by 東武推しの千葉県民 · CC BY-SA 4.0

The maps Inō Tadataka drew by surveying Japan on foot are a National Treasure.

The building, in a modern style that recalls the earthen storehouses of the old town, stands on the opposite bank from the house where Inō Tadataka lived until 1795. It displays the surveying instruments and the original maps from his survey of the whole of Japan, begun at the age of 55 and completed by his pupils after his death.

Inō Tadataka (1745–1818), a Sawara merchant who became a cartographer, surveyed the coasts of Japan on foot between 1800 and 1816, producing the first map of the country on a geodetic basis. The materials from his survey (伊能忠敬関係資料) are designated a National Treasure.

ℹ️ Open 9:00–16:30, closed on Mondays (open if a public holiday) and over the year-end and New Year period. Admission 500 yen adults, 250 yen students (source: city.katori.lg.jp).

🚉 Sawara · 10 min walk

Sources: city.katori.lg.jp

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