File talk:Intersecting Dikes in Black Canyon of the Gunnison.jpg

出典:ウィキメディア・コモンズ (Wikimedia Commons)
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Hi! Can someone add a better description to this otherwise excellent picture? It currently only gives the location. I would like to use it in an article at Wikipedia, but would like to have the lithologies and formation name in the description. Regards, Woudloper (talk) 13:30, 8 October 2009 (UTC)[返信]