Grey rock surfaces - #2

Part of a roadside outcrop near Banff townsite, Banff National Park, western Canada.

 

Erosion focused along a grid-like (orthogonal) network of planar fractures is causing this bedrock to break up into rectangular or cubic blocks.

 

Not a monochrome image - green and brown plants are present at lower left.

 

C. J.R. Devaney

Done