alp
alpine
alps
alternative
alternative energy
angle
arch dam
architecture
barrage
big
building
canyon
concrete
construction
dam
electric
electricity
energy
europe
generation
generator
green
high
hiking
hill
huge
hydro
hydroelectric
hydroelectric power station
lake
landmark
landscape
large
maggia
mountain
naret
outdoor
panorama
panoramic
peak
power
reservoir
rock
scenery
scenic
sky
spring
swiss
switzerland
tessin
ticino
trail
upper
valley
view
wall
water
wide