![](http://www.alamy.com/thumbs/6/8164590F-D9F3-435B-8F7D-EF9FDFC9BA31/CXJM6K.jpg)
Top surface of Columnar Basalt, Devil's Postpile National Monument, Mammoth Lakes area, Eastern Sierra, California
Size: 5146px × 3417px
Photo credit: © Kevin Schafer / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: basalt, california, columnar, columns, cooling, devil, erosion, geology, hexagon, hexagonal, lakes, landscape, lava, mammoth, monument, mountains, national, nevada, pattern, patterns, postpile, rock, rocks, scenic, shape, shapes, sierra, structure