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ORSEL 107 - Rock formations with honeycombs Leslie Gulch Oregon.jpg
ORSEL 107 -  Towering rock formations with honeycombs are formed from compressed volcanic ash called Leslie Gulch Tuff, Leslie Gulch, BLM Area of Critical Environmental Concern, southeast Oregon, USA --- (4x5 inch original, File size: 6134x4800, 84.2mb uncompressed).