458 



PLEISTOCENE OF INDIANA AND MICHIGAN. 

 Altitudes of Nipissing beach on the north and east of Lake Michigan. 



Locality. 



Altitude 



above sea 



level. 



Height 



above Lake 



Huron. 



Sault Ste. Marie 



Detour 



Mackinac Island (storm bar) 



Mackinac Island (average normal bars) 



St. Ignace 



Mackinaw City 



Beaver Island (north) 



Beaver Island (south) 



Harbor Springs 



Burgess 



Charlevoix 



Norwood 



Northport 



Omena (storm bar) 



Leland 



Suttons Bay 



Elk Rapids 



Acme 



Traverse City 



Aral 



Frankfort 



Herring Lake (gravel belt) 



Arcadia 



Onekama 



Bar Lake 



Feet. 

 a 651 

 a 632 



Leverett. 



Russell. 



(ioldthwalt. 



Goldthwait and Taylor. 



(InMihwait. 



Do. 



Do. 



o By aneroid barometer. 



The differences in the measurements on Mackinac Island are so great as to leave some doubt 

 as to the height of the normal beach. Estimated from all the forms that seem normal and 

 excluding the extra high storm beaches, the height is about 50 feet above the lake. 



The beach at Omena is also a high storm bar. The measurements at Frankfort and Herring 

 Lake are both on ridges that are strong but are not sharply defined. 



On the west side of Lake Huron the altitude of the Nipissing beach was determined instru- 

 men tally only by Gregory and Cooper. The other readings are by either aneroid or hand level. 

 The altitudes are given in the following table : 



Altitudes of 



ing beach on the north and west of Lake Huron. 



Cheboygan a 



Hammonds Bay a 



Rogers 



Crawford's quarry 



Thompson Harbor (storm bar) 



Alpena & 



Ossineke 



Harrisville a 



Greenbush a 



Oscoda a 



Tawas a 



Alabaster " 



Au Gres a 



Kawkawlin a 



St. Charles 



Sebewaing a 



Bayport a 



Grindstone City a 



White Rock a 



Port Huron a 



Taylor. 

 Gregory. 



Taylor! 



Cooper. 

 Taylor. 



Lane. 

 Taylor. 



a By hand level. 



' By aneroid barometer. 



