CONTENTS 



PAGE 



Introduction 75 



Topography of the northern Adirondacks 75 



The plain 75 



Hilly tract 76 



Present character 77 



Old base levels of erosion 78 



Tilting of base levels 80 



Drainage 83 



Precambrian rocks 89 



Grenville series 92 



Doubtful gneisses 95 



Later eruptives 99 



Paleozoic rocks 123 



Economic geology 125 



Iron ore 125 



Building stone 126 



Road metal . : 127 



Lime 128 



Geologic map of Franklin co back cover 



