Connecticut River and riverine terrace

Then section. Lithic source
#4. H144 10-20. Basalt dike, Higganum dike, CT
13. Feat 444 20-30. Basalt, extreme chill-margin,Higganum dike
14. Feat 450 20-30. Hornfels. CT
15. Feat 239 40-50. Basalt, chill margin, Higganum dike, CT
16. Feat 437 surf. Fossiliferous chert. NY
17. Feat 102 10-20. Fossiliferous chert. NY
18. H-209 30-40. Basalt, Higganum dike. CT
19. F-181. 59-69. Fossiliferous chert. NY
20. F-287. 20-30. Fossiliferous chert. NY