a river
aikawa town
bridge
building
dam
electrical
hydraulic power
hydro power generation
ishikaki lake
ishiya
ishiya bridge
kanagawa prefecture
lake
lake miyagase
miyagase
miyagase dam
miyagase subdub
mountain stream
nakatsugawa
nature
park
power
power generation
river
scenic site
secondary dam
stone hut dam
tourism
tourist spot
valley
water