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1.
International boundary lines across Colorado and Wyoming : a lesson in geography / Erl H. Ellis. by
Edition: edition limited to 500 numbered and signed copies of which this is no. 0422.
Material type: Text Text; Format: print ; Audience: Adult;
Publisher: Boulder, Colorado : Johnson Publishin Company, 1966
Availability: Items available for reference: Archives: Not for loan (1)Call number: ANF 341.42 ELL.

2.
Colorado mapology / Erl H. Ellis. by
Edition: Limited edition #292/400
Material type: Text Text; Format: print regular print ; Literary form: Not fiction ; Audience: Adult;
Publisher: Frederick, Colo. : Jende-Hagan Book Corp.Copyright date: ©1983
Availability: Items available for reference: Archives: Not for loan (1)Call number: OS 910 ELL.

3.
The saga of upper clear creek county: a detailed history of an old mining area: its past and present by
Edition: First.
Material type: Text Text; Format: regular print ; Audience: Adult;
Publisher: Frederick, CO Jende-Hagen Book Corporation, 1983
Availability: Items available for loan: John Tomay Memorial Library (1)Call number: CO HIST REF 978.8 ELL. Items available for reference: Idaho Springs Public Library: Not for loan (1)Call number: CO HIST REF 978.8 ELL.