Page:Report on the geology of the four counties, Union, Snyder, Mifflin and Juniata (IA reportongeologyo00dinv).pdf/71

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The above scale represents all the rocks found in the two western counties. There is very little of No. VIII in Mifflin county, except towards the east side along the Union county line, and very little of Nos. II and III in Juniata except in the Black Log valley; so that no one section will fit all parts of this district.