Mar., 1910.] Pennsylvania?! Limestones. 133 



KEY TO ACCOMPANYING MAP. 



The streams, cities and villages, and points of outcrop or 

 place of occurrence of limestone are fairly accurately located 

 on the accompanying map. Those streams, towns, and outcrops 

 mentioned in the foregoing description are for the most part, 

 located on the map. Streams are named by letter, and points 

 of outcrop by numbered cross. 



STREAMS 



A Nimishillen Creek 



B West Branch Nimishillen 



C Middle Branch Nimishillen 



D East Branch Nimishellen 



E Mahoning River 



F Deer Creek 



G Island Creek 



H Little Mill Creek 



I Turkey Broth Creek 



J Meander Creek 



K McMahon Run 



L Infirmary Run 



M Diehl Creek 



N Mill Creek 



O Neff Run 



P Indian Creek 



Q Yellow Creek 



R Btirgess Run 



S Furnace Run 



