Polygonal Patterns

Hexagonal andesite columns caused by molten rock coming in contact

with glacial ice. Please view larger, all comments welcome.

Regards, Joe

Thanks for the compliment, Nadya.

To answer your question Tatjana, no, this is at Mt. Rainier national park. Your'e thinking of the Giant's Causeway, a similar formation on the Irish coast. This is actually a fairly common phenomena with volcanic rock, particularly andesite and basalt. You can find this sort of stuff all over the place here in the Pacific Northwest, lots of volcanic activity around here, thats for sure!

Regards, Joe