Qualla: Iya Valley

Iya Valley: Introduction

Sat, 14 Mar 2026 00:00:00 GMT

Photo credit na0905, CC BY 2.0. The tofu made in the Iya Valley is so dense they call it stone tofu. A brick-sized piece can be carried by wrapping a single rope around it. This small detail says something larger about the place: everything in this remote valley on Japan's island of Shikoku has been shaped by isolation, by steep terrain, by the necessity of making do with what the mountains provide. The Iya Valley -- whose kanji characters translate to "ancestor valley" -- has been a refuge for the defeated and a holdout for the traditional. Members of the Taira clan fled here after losing the Genpei War in the late 12th century, and some of their descendants never left.

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Image: na0905 | CC BY 2.0

Iya Valley: A Valley of Fugitives

Sat, 14 Mar 2026 00:00:00 GMT

Photo credit Kimon Berlin, CC BY-SA 2.0. The remoteness that defines Iya was exactly the point for the warriors who first sought shelter here. After the Genpei War (1180-1185), members of the defeated Taira clan -- also known as the Heike -- are said to have retreated deep into these mountains rather than submit to the ...

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Image: Kimon Berlin | CC BY-SA 2.0

Iya Valley: Living Architecture

Sat, 14 Mar 2026 00:00:00 GMT

Photo credit J. Miers - User: (WT-shared) Jtesla16 at wts wikivoyage, CC BY-SA 1.0. The traditional houses of the Iya Valley are built without a single nail. Massive red pine and hemlock logs form interlocking horizontal beams, while squared chestnut posts serve as verticals, the entire frame designed to expand and contract with the seasons. The foundations -- a...

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Image: J. Miers - User: (WT-shared) Jtesla16 at wts wikivoyage | CC BY-SA 1.0

Iya Valley: Flavors of the Steep Country

Sat, 14 Mar 2026 00:00:00 GMT

Photo credit Coolbluebear, CC BY-SA 4.0. Farming in the Iya Valley means terraced plots carved into hillsides, tilled largely by hand. Rice proved difficult here; the staples are buckwheat and potatoes. The famed Iya potatoes are small and dense, shaped by the rocky soil, and appear in a local dish of whole-boiled potat...

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Image: Coolbluebear | CC BY-SA 4.0

Iya Valley: The Valley Now

Sat, 14 Mar 2026 00:00:00 GMT

Photo credit (WT-en) Prestonpreston at English Wikivoyage, Public domain. The Iya River flows roughly 50 kilometers from the springs of Mount Tsurugi -- Shikoku's second-highest peak -- down through the valley to where it joins the Yoshino River at about 90 meters elevation. The original road through the lower gorge, built between 1902 and 1920, is a s...

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Image: (WT-en) Prestonpreston at English Wikivoyage | Public domain