CONTENTS 



PAGE 



Introduction I 



The main trenches 5 



The bison pit 1 3 



Artifacts i/ 



Points i8 



Scrapers 22 



Gravers and chisel-gravers 25 



Choppers 27 



Knives 29 



Large blades 30 



Miscellaneous objects 30 



Identification of bones and mollusks 33 



Summarj' and discussion 34 



Literature cited 37 



ILLUSTRATIONS 



PLATES 



PAGE 



1. I. General view of site showing ravine and trenches across terrace... 38 

 2. Lower end of trench A 



2. I. Sifting earth from section at lower end of trench A " 



2. Artifacts in situ. Chopper at left, portion of Folsom point at right. . . 



3. I. Uncovering articulated bison leg in bison pit " 



2. Vertebra with point in vertebral foramen 



4. Folsom points " 



5. Side scrapers " 



6. Side scrai>ers " 



7. Large quartzite scrapers " 



8. " Snub-nosed " scrapers " 



9. Gravers, chisel-gravers, bone disk " 



1 o. Flakcknives " 



1 1 . Flakeknives " 



iJ. Rubbing stones, a-c ; scrap nodules, /-/; ; hammerstones, {, j " 



TEXT FIGURES 



1. Cross-sections of trench walls, face of deep pit, and sides of bison pit. ... 6 



2. Yuma point, cross-section and base types 21 



3. Side scrapers with concave cutting edges 23 



4. Nodule scraper 25 



5. Choppers 28 



MAP 



Map I. The Lindcnmeier site (Frontispiece) 



