トレイルパス
blue
brick
brick building
bright light on trees
business district
canal
chesapeake and ohio canal
clouds
commercial commercial building
forest
georgetown
grass
green
green trees
industrial buildings
lake
leisure
outdoors
park
park trail
peaceful
potomac
potomac river
quiet
recreation
river
serene
sky
smoke stack
stone wall
sunny day
towpath
trail
trees
united states
usa
walk on path
walk on trail
wall
water
water reflections
windows