三滝ダム 鳥取で約160km 最後のバットレスダム
http://maps.google.co.jp/maps?ie=UTF8&ll=35.27078,134.333482&spn=0.009478,0.013626&z=16&om=1
石井ダム すぐそこ レクリエーションダム
http://maps.google.co.jp/maps?ie=UTF8&om=1&ll=34.702777,135.148906&spn=0.004772,0.006813&z=17
天保山山頂 すぐそこ 日本一低い山(人工)
http://maps.google.co.jp/maps?ie=UTF8&ll=34.657463,135.432694&spn=0.009549,0.013626&z=16&om=1
弁天山山頂 徳島で約140km 日本一低い?山(自然)
http://maps.google.co.jp/maps?ie=UTF8&ll=34.024565,134.540505&spn=0.009621,0.013626&z=16&om=1
徳山ダム 岐阜北部約210km 来年完成日本最大
http://maps.google.co.jp/maps?ie=UTF8&ll=35.665278,136.502222&spn=0.07545,0.109005&z=13&om=1