200 



UNIVERSITY OF COLORADO STUDIES 



Conejos line which was defined as running along a range, the La Plata, 

 which was misplaced in the maps used by the legislature ; but this mis- 

 take was corrected before the opening of the San Juan country made it 

 a matter of importance.^ It is worthy of note that four of the eastern 



L arimer 



Summit 



W&Jd 



/Irapahoe 



Do a g J a s 



r' ^^ 



El Pa^Q 



Pueblo 



Abandornfa\ 



Re-serve I 

 I 



I j /— ' 



Huerfcano 



Las AnimO'S 



Map III. — 1866 — Second to Sixth Assemblies. 



counties were bounded in part by the Cheyenne and Arapahoe reserva- 

 tion, established by treaty of February 18, 186 1, and lasting until after 

 the treaty of Little Arkansas, of October 14, 1865, which followed the 

 serious plains war of 1864.^ In no other instance did Colorado allow a 

 reservation to interfere with the extension of county boundaries over its 

 area. The Ute reservations in the west were always covered by these lines. 

 From 1864 until the arrival of the railways in 1870 Colorado failed to 

 continue in the rapid growth which had been hoped for in the early sixties. 



' There is a range indicated as "La Plata" in the position evidently contemplated in 1861, in "Map No. 

 4: From the Coo-che-to-pa Pass to the Wahsatch Mountains," in Reports of Explorations .... for a Rail- 

 road from the Mississippi River to the Pacific Ocean (Washington, 186 1), Vol. XL This range separates the 

 rivers San Juan and Dolores, along which divide the Une is drawn in the maps accompanying this article. 



" C. C. RoYCE, "Indian Land Cessions in the United States," in Bureau of American Ethnology, 

 Eighteenth Report, 1896-97, Part 2, pp. 824, 838, and maps. 



