U. 8. GEOLOGICAL 8URVEY 



Prom Two Rivers to Rock IeLwI ■<!>■■•- fioldilnvait, with slight modifications; from 

 St. Martins Island !•■ Van's Harbor, from -lata rolli-cU-.J I . v Ifot.hs; north from Van's 

 Harl-ir from observations bv N-va.l!. Me.^arement'i by Gold Ih wait and H.,bl.j, by 

 Biiirit level: by Leverett, with hand level ami am.-/-.,]. I. The hi^he^t beach at Grand 

 Miirai.i m-.-lably i«rnr .,l,-i,-- 1 1..- ]■■ .-,1 i.-. L . li.-.| |>y Leverett'e oL-ervations, forit Ls'J-10 

 fi-i-t at Mar.|iK'l(e itixl '.*'.'.:• fret .il lies ford, and Ihe Uobase of these places runs about 

 is uukr- -outli of Grand Marais 



Mi'MVlH U'H LIM PLATE ) 



oaAOOf doubtful idi-niitv 

 I Unjemii bhifl 



i Cut terrace 



NE 



Mu O * 



■fl ' 



3 





ft ,8 

 111 



HI 



II 



8||l | I 81 3JJ« li 



fill: I I I-SSSI It 



Altitudes in feet above sea level 



' Big Bay de Noc 





* dnTt anpMjg^ — ^ j *" 



■ 



PROFILE OF WARPED WATER PLANES ON THE WEST SIDE OF LAKE MICHIGAN. 



