The geological formations in the world are fantastic
Here are a couple from England:
and
The geological formations in the world are fantastic
Here are a couple from England:
and
Saw my first examples on a road trip from Seattle to Lewiston ID. As you approach from the West, the highway descends from the Columbia Plateau (created by 53K square miles of basaltic lavaflowa) to cross the Snake River. During the descent, the road follows the route the river has cut down through a formation of columnar basalt: very large, regular shaped basalt columns lying next to the highway where they have fallen due to water and ice erosion. A little unnerving.
Lots of links and images on the web. At least one Seattle company considers them to be a resource: http://www.cascadestoneworks.com/index.php