Sameura Dam, located upstream of the Yoshino River. With a height of 106 meters, it is the largest dam in the Shikoku region, built for flood control of the Yoshino River and water utilization throughout the Shikoku region. About 2,000 Yoshino cherry trees are planted around Lake Sameura, the largest artificial lake in Shikoku formed during dam construction, and at Sameura Dam itself, reaching their best viewing time from late March to early April.