24. 



CO U N T X, 



L INC O L N 



. f S'P'RINQ WATER 



6tll 'D '\ 



L ^ i C L ! N T 



.'.-- .10 '.< JH 7 2B 



R.XLVTW: Q R.xrvw. ~\\T 



GEOLOGICAL AND NATDRAL HTSTORT 

 SURVEY OF MINNESOTA. 



PIPES TONE AND 



ROCK 

 COUNTIES. 



BY N. H. Wl NCHELL . 



VICINITY OF THE RED PIPESTONE QUARRY. 



;Modified Drift 



IXofss ;Modified L 



/"X x / T'-JJ 



-J I r . 1 <*W\ 



Cambrian (Potsdam Qnartzj 



^ ! 



[m 



r^ 



roittour Luxes CW 



