This situation is very similar to the relationship between Tenryu-kyo valley of the Tenryu-gawa River and Iida City, and likewise floods have caused damage to Kameoka Basin many times over the centuries.
これは天竜川における天竜峡と飯田市の地理関係に良く似ており、古来より亀岡盆地は水害の被害を度々受けていた。