44 GEOLOGICAL SURVEY OF WISCONSIN. 



LIST OF MAPS 

 Accompanying tJie First Annml Sepori of the Wisconsin Geological Survey, 1873. 



A map of the state (published by Silas Chapman) on a scale of six miles to an inch, 

 showing in colors the boundaries and extent of the several rock formations so far as 

 is known up to the end of the year 1873. On four sheets. 

 A map of the Muscalonge diggings in Grant county, on a scale three chains (198 feet) 



to an inch. 

 A map of Ashland county and another of Douglas county, on a scale of two miles to one 

 inch, showing the geological features and mineral ranges in those counties; also a 

 map of the Apostle Islands; to accompany the report of Prof. R. D. Irving. 

 A map in two sheets on a scale of two miles to an inch, showing the geology and topo- 

 graphy of the region surveyed by Prof. T. C. ChamberKn, from the state line in 

 Walworth and Rock counties to Keshena, in Shawano county. Also two maps, on 

 a scale of six miles to an inch (based upon Mr. Chapman's map) ; one showing the 

 distribution of vegetation, etc., the other representing the areas occupied by the 

 different Hnds of soil in the same region. These maps accompany the report of 

 Prof. Chamberhn. 

 Geological Map of the Lead Region (m part) on six sheets, to wit: 



1st. Ranges two and three east from three miles south of the state line to Min- 

 eral Point, being townships No. one, two, three and four, in those ranges. 

 2d. Townships four and five in ranges one to six west, inclusive. 

 3d. Townships four and five in ranges one to five east, inclusive. 

 4th. Ranges two and three east, in townships five to nine, inclusive. 

 5th. Ranges two and thi'ee east, in townships ten, eleven, twelve and thirteen. 

 6th. Ranges five and six east, from township five to the Wisconsin river in town- 

 ship nine. 

 Topographical Map of the Lead Region (in part) on two sheets, to wit : 

 1st. Ranges two and three east, in townships one to six, inclusive. 

 2d. Townships four and five in range one east, and ranges one to six west, inclusive. 

 These maps are all upon a scale of one mile to an inch. 



A geological, topographical and subterranean map of the Blue Mounds and the Brig- 

 ham Lead Mines, on a scale of one to twenty thousand. 

 AH these maps in the lead region accompany the report of Mr. Moses Strong. 



All of which is respectfully submitted. 



I. A. LAPHAM, 



Milwaukee, January, ISIi. '° "^'^ " 



