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Tazawako Caldera Relief Map SRTM. Relief map of Tazawako Caldera Akita Prefecture Thoku region Honshu Japan Data from SRTM Mesh Ver SRTM Ver NASA's jpl nasa gov Shuttle Radar Topography Mission SRTM Mesh Batholith Commons br PDUSGovNASASRTM Topographic maps of Akita prefecture Lake Tazawa
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