Rocky Mountains. 61 



,hey are most frequent on the hills about the Merameg and 

 on the north side of the Missouri. On the 13th June, Mr. 

 Say and Mr. Peale, accompanied by one man, descended the 

 Mississippi, in a small boat to the mouth of the Merameg, 



No. 10. Distance, about N. 74 



Base, 91 



Top, 34 



Height, 8 or 10 



No. 1 1 . Nearly square, with a large area on the top, (a brick house is erect- 

 ed at the S. VV. corner.) The eastern side appears to range with the 

 preceding mounds. 



Distance, - - - - 158 feet. 



Base, 179 



Top, 107 



Height W. side, say 5 



S. ----- 11 

 E. 15 or 20 



No. 12. Nearly square, westerly a little, N. from No. 7, and 

 distant from it, - - - - - 30 



Base, 129 



Top, - - - - - - 50 



Height, 10 



No. 13. A parallelogram placed transversely with respect to the group 

 Distance, - - . - 30 feet, 



Distance from No. 5, N. 10 W. - 350 



Longitudinal base, ... 214 



top, - 134 ^ 



Transverse base, - - - 1 88 



top, ... 97 



Height, .... 12 



No. 14. A convex mound, W. - 55 



Base, ---. 95 



Height, - - - . 5 or 6 



No. 15. Together with the three succeeding ones, more or less square. 



Distance N. W. - - - 117 



Base, 70 



Height, .... 4 



No. 16. Distance N. 10 E. - - - 103 



Base, - - - - 124 



No. 17. Distance N. - - - - 78 



Base, - - - - 82 



No. 18. Distance, N.N. E. - - - 118 



Base, - - - 77 



The mounds from 14 to 18 inclusive, are so arranged as to describe a 

 -.urve, which, when continued, terminates at the larger mounds, Nos. 15 

 and 19. 



No. 19. A large quadrangular mound, placed transversely, and with No. 

 13, ranging in a line nearly parallel to the principal series (from 2 to 11.) 



