Zion National Park may not have trains but its already got a subway.
The canyons natural Subway is spectacular tunnel sculpted by two curved canyon walls.
The green flora creates an eerie turquoise glow that radiates throughout the spectacular chamber.
The crystal clear water splashing through this picturesque setting meanders over polished rock to the open canyon below.
Churning water chisels the rock floor, forming shallow potholes that fill to the brim with frosty water.
The Subway is a popular spot among hikers.
