taisho pond taishoike was formed in 1915, when an eruption of the nearby volcano mt. yakedake

1915 alpine alps autumn azusa beautiful dammed environment eruption fall famous foliage forest formed green happy hill holiday hotaka illustrative japan kamikochi kamikochis landscape leaf marshland matsumoto most mountain mthotaka nagano national nature nearby one outdoor park peak pond prefecture range red river scenery scenic season shinano sightseeing sky small snow spots stone surrounded taisho taishoike tender tourism travel tree trekking vacation volcano was water when yakedake yellow