X GEOLOGICAL SURVEY OF WISCONSIN. 



PAKT II. 

 GEOLOGY OF EASTERN WISCONSIN. 



BY T. C. CHAMBEKLIN. 



ACKNOWLEDGEMENTS, - - 93 



EXTENT OF DISTRICT, 94 



PREVIOUS PUBLICATIONS RELATING TO THE REGION, - - 95 



CHAPTER L TOPOGRAPHY. 



Preglacial Features Glacial Features Postglacial Features General Slopes Pe- 

 culiar Diagonal Valley The Fox River Its Commercial Importance Origin 

 Rock River Valley Peculiarities of its Course Commercial Importance Valley 

 of Lake Michigan Slopes and Dividing Ridges Kettle Range Elevations, 



95-127 



CHAPTER II. HYDROLOGY. 



DRAINAGE The Watershed The Mississippi and St. Lawrence Basins Peculiar- 

 ities of Streams of Walworth and Adjacent Counties Of the Pike River Of the 

 Milwaukee River Of the East Twin River Of the Wolf, Oconto, Peshtigo and 

 Menomonee Rivers Of the East Branch of the Rock River Relationship of some 

 of the Streams on Opposite Sides of the Kettle Range Geneva Lake and Big Foot 

 Prairie Delavan Lake and White River Turtle Creek and Sugar Creek Bark 

 and Oconomowoc Rivers and the Branches of Cedar Creek Rubicon River and 

 Cedar Creek Origin and Geological Relations of the Lakes of Eastern Wiscon- 

 sin Lake Michigan Green Bay, Lake Winnebago and the Former Lake Hori- 

 con Lake Poygan Lake Puckawa Green Lake Rush Lake Lake Sha- 

 wano Lake Koshkonong Glacial Lakes Moraine Lakes Minor Lakes 

 Their Beauty and Value Geneva, Oconomowoc, Green, Elkhart, Rock, Brown, 

 Clear and Delavan Lakes Water Supply Springs Two General Systems 

 The Several Geological Horizons Analyses Source of Mineral Substances Medi- 

 cinal Character Sulphur Springs Chalybeate Springs Travertine Springs Trout 

 Springs Artesian Wells Classified According to Source of Flow Fountains at 

 Fond du Lac At Taycheedah In Byron In Oakfield At Oshkosh In Cal- 

 umet In Rushford, Aurora and Poysippi At Watertown At Pahnyra At 

 Whitewater At Manitowoc At Western Union Junction At Racine At Mil- 

 waukee At Sheboygan At Janesville Possibilities of Obtaining Fountains at 

 Other Points The Three Districts Elevations of Junction of St. Peters Sand- 

 stone and Trenton Limestone Water Power Of Rock River Of the Fox 

 River Of the Wolf, Oconto, Peshtigo and Menomonee Rivers Of Milwaukee, 

 Sheboygan and Manitowoc Rivers Changes in Drainage, - - 128-175 



CHAPTER III. NATIVE VEGETATION. 



Agricultural Indications Natural Grouping of Plants Upland Vegetation, Prairie 

 Group Oak Group Oak and Maple Group Maple Group Maple and Beach 

 Group Hardwood and Conifer Group Pine Group Limestone Ledge Group 

 Comprehensive Group Marsh Vegetation Grass and Sedge Group Heath 

 Group Tamarac Group Arbor Vitas Group Spruce Group Black Ash Group 

 Yellow Birch Group Distribution Cranberries Native Occurrence Condi-/ 

 tions of Success in Culture, - - - - - - - - 176-1 7$ 



