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. In 2018, the ancient tomb was discovered in Tagawa, Fukuoka. The sizes of the tomb were measured by UAV. The length is 443 m, the diameter is 152 m, and the height is 33 m: the second biggest mound in Japan. Chinese history book, Sanguozhi (Chen, 280) reads Yamatai country occupied 27 countries in Japan in the 3rd century by the queen Himiko. The location of Yamatai was 840 km south from Soul with 70000 families, and the size of Himiko’s tomb was 150 m diameters. The locations of Yamatai country and Himiko’s tomb are still unknown. From Sanguozhi, the optimum location was estimated with the direction, the distance and family numbers. Family numbers were estimated from the river watershed areas. Kyushu islands have 28 big rivers, corresponding to 28 countries described in Sanguozhi. Each river corresponded to each country, and their family number was estimated by 2.5% of the watershed area with family number / 10 a. Finally, the Chikugo river watershed was a candidate of Yamatai country. Moreover, two kinds of tombs became candidates of Himiko’s tomb.

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

FRACTAL ANALYSIS FOR AKAMURA MOUNDED TOMB AND LOCATION ESTIMATE OF YAMATAI COUNTRY