mt.yake-dake with taisho pond taishoike was formed in 1915,

1915 alpine alps azura azusa beautiful beauty changing colors dammed environment eruption fall famous foliage forest formed green happy heart hiking hill holiday hotaka illustrative japan japanese kamikochi kamikochis landscape leaf mature mountain mountains mthotaka mtyakedake nagano national nature nearby outdoor park peak pines pond prefecture range red river scenery scenic season shinano sightseeing snow spots stone taisho taishoike tender that their tourism trail trees trekking vacation volcano walks was water when yakedake yellow