File:Figure O-2A.jpg: Revision history

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    31 March 2016

    • curprev 16:3116:31, 31 March 2016Alan.Myers talk contribs 151 bytes +151 Fig. O-2 A -- St. Peter Sandstone in Starved Rock along the Illinois River in Starved Rock State Park, 4 miles south-east of La Salle, La Salle County.