prefecture
antonivanovtsi
autumn
beautiful
canyon
dam
devin
engineering
environment
europe
fall
forest
geological
gorge
hill
hydro
japan
krichim
lake
landmark
landscape
leaves
leisure
maple
meadow
meander
mountain
natural
nature
northeast
panorama
peninsula
plant
plovdiv
power
region
reservoir
resource
rhodope
river
surface
tadamimachi
tagokurako
tree