572,. 05 



V. 2** 



Cop. 2* 



CONTENTS. 



"^ Page. 



Introduction, - .... . 235 



4) Location and recent history of the quarry, - ... 237 



The route to the quarry, ------- 237 



«3 Quarrying operations by means of excavations, - - - 238 



Nature of occurrence and character of material quarried, - - 238 



^ Character of work done in the pits, as determined by exposed quartzite 



stratum in ravine, ....... 239 



Hammer-stones, -------- 240 



Rejects and flakes, ------- 240 



Material found about the tipi circles or shop sites, - - 241 



Age and occupation, ------ . 242 



ILLUSTRATIONS. 



Plate. 



XXVIII. North wall of ravine with exposed stratum of quartzite. 



XXIX. More detailed view of quartzite stratum, showing colored masses or 

 geodic phases. 



XXX. Section of quartzite stratum with jasper nodules in situ. 



XXXI. General character and contour of pits. 



XXXII. More detailed view of pits, showing extent of workings. 



XXXIII. Compact masses of quartzite used as hammer-stones. 



XXXIV. Typical rejects from neighborhood of pits. 

 XXXV. Additional rejects from pits. 



XXXVI. Typical flakes from pits. 



XXXVII. Typical rejects and flakes from neighborhood of tipi circles, j 



XXXVIII. Characteristic scrapers from neighborhood of tipi circles. 



XXXIX. Lower milling-stone found within a tipi circle. 



233 



