Keywords: Outcrop of Upper Ordovician rubbly limestone and shale, southern Indiana.jpg en Outcrop of Upper Ordovician rubbly limestone and shale southern Indiana; College of Wooster students Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www wooster edu/geology/MWilson html en wikipedia 2007-05-12 Wilson44691 wikipedia en Wilson44691 Original upload log en wikipedia OrdoutcropIN jpg wikitable - 2007-05-12 23 55 700×472× 266767 bytes Wilson44691 <nowiki>I took this photograph </nowiki> Geology of Indiana |