214 Migrations of Siouan Tribes. [ March, 
This must refer to a late period in the history of the Iowas, 
extending back, perhaps, not further than 1740 or 1750. This 
will appear the more plainly after comparing the above statement 
respecting the Otos with the map of the migrations of the Iowas 
given as Plate xxx in Vol. 111 of Schoolcraft’s Archives of Abo- 
riginal Knowledge. A copy of the map accompanies this article, 
The supposition of the writer is also in accordance with what fol- 
lows about the migrations of the Iowas in company with the 
Omahas and Ponkas. 
“ The Missouris in course of time abandoned their village at 
the mouth of the Missouri, and gradually ascending the river at 
length built a town on the left bank, near the mouth of Grand 
river. They were found there by the French, who built a fort on 
an island in the Missouri, very near them, about the beginning of 
the last century. * * * The Missouris continued to dwell in 
the same locality until, about twenty years since (A. D. 1798, 
1799 or 1800), they were conquered and dispersed by a combina- 
tion of the Saks, Foxes and some other Indians. Five or six 
lodges joined the Osages, two or three took refuge with the Kan- 
sas, and the chief part of the remainder amalgamated with the 
tos.” 
In 1673 the Otos were placed by Marquette! between 40° 
and 41° N. lat., west of the Missouri and Mississippi rivers, east 
of the Maha (Omahas) and south-east of the Pana (Ponkas?). 
The Iowas, according to the same authority, were between 40° 
and 41° N. lat., north-west of the Maha and west of the Pana. . 
In 1680 the Ainoves (Iowas) were east of the Mississippi and 
near the Kickapoos, according to Membré (see Shea’s Discov. 
and Expl. Miss. Valley, p. 150). The Otos were “one hundred 
and thirty leagues from the Illinois, almost opposite the mouth of 
the Miskoncing.” In 1687 the Otos were on the Osage river. 
In 1700 Iberville said that the Otos and Iowas were with the 
Omahas between the Missouri and Mississippi rivers, about 4 
hundred leagues from the Illinois. In 1721 the Iowas were east 
_ of the Missouri river, above the Otos and below the Pawnees; 
_ being allies and neighbors of the Dakotas. The Otos were 
below the Iowas and above the Kansas, on the west side of the 
Missouri (Charlevoix, Histor. Journal, p. 294). 
The Ponkas told Rev. A. L. Riggs that their ancestors used tO 
‘dwell east of the Mississippi. They subsequently inhabited the 
1 See his autograph map in Shea’s Dj a . 8vo, 
a E. age p in Shea’s Discov. and Explor. of the Miss. Valley 
a 
