COUNTY BOUNDARIES OF COLORADO 



209 



bonate had been discarded for the old name of Lake, while the southern 

 end received the new name of Chaffee/ 



Two years after the Leadville boom of 1879, the third assembly 

 divided the county of Ouray, to erect that of Dolores, and cut off the 

 northeastern corner of Gunnison to receive the name of Governor Pitkin.* 

 But it was not until the time of the fourth assembly, in 1883, that the final 



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Map XI. — 1883 — Fourth General Assembly. 



removal of the last of the Uncompahgre Utes made it possible to reduce 

 the counties of the west to reasonable dimensions. In this year, 1883, 

 Summit was restricted to its present limits, while out of its western end 

 were erected Eagle and Garfield. ^ Gunnison was likewise reduced to its 



' Act of February lo, 1879 {Sess. Laws, 1879. p. 48). 



' Dolores was erected by act of February 19, 1881, and Pitkin by act of February 23 {Sess. Laws, 1881, 

 pp. 92, 89). The juint line of Garfield, Pitkin, and Mesa was run by the state engineer in 1890 {Fifth Bien- 

 nial Report, Part I, p. 14.). 



3 Garfield, February 10; Eagle, February 11; (Sess. Laws, 1883, pp. 130, 127). The Eagle-Summit 

 boundary was defined, in its northern end, as the divide between the Piney and Blue Rivers. A later and better 

 geographical knowledge showed that two divides exist between these rivers, being themselves separated 

 by the Sheephom Creek and valley. The state engineer, John E. Field, surveyed the line in 1897 and accepted 

 the eastern divide as the statutory hne, throwing the Sheephom valley into Eagle county (Ninth Biennia 

 Report, p. 30). The line between Garfield and Eagle had been run by the same official in 1893 (Seventh Bien' 

 nial Report, p. 221). 



