Places

1895 Rand McNally Atlas

Courtesy of Digital Atlas of Idaho

2023
Courtesy of Google Maps

Populated Places

Bayhorse (ghost town) on the Bayhorse creek. Formerly Aetna and Bay Horse. The Post Office was first established as Aetna, a name then assigned by the U S Post Office because Bay Horse, as two words, was considered unacceptable. By 1884 Bay Horse was listed as a post office name and Aetna was dropped. Now the name is written Bayhorse. The Post Office was discontinued in 1927. Said to have been named for an incident in 1864. A prospector lost his bay horse and in his search discovered an outcropping of ore at the site. --Idaho Place Names, A Geographical Dictionary
Bonanza (ghost town) "The townsite of Bonanza was laid out in 1878 by Charles Franklin. In 1881 it had a peak population of 600. In 1889, and in 1897, fire destroyed much of Bonanza, and many merchants relocated to Custer. . . Custer was two miles upstream from Bonanza City." --Cort Conley, Idaho for the Curious: A Guide. Backeddy Books, Cambridge, Idaho. 1982. (p.359f)
Challis (county seat)
Chilly An old mining town in the southern part of Custer County on Hwy 93, 17 miles N.W. of Mackay; Settled in 1899 by pioneers from Utah; post office, 1903-1934. Named for the temperatures that reached 30 to 40 degrees below zero.
Clayton
Custer (ghost town)
Darlington "The town called Darlington is only a place along HWY 93 on your way to Mackay, Idaho. It is 16 miles north of Arco, Idaho. There is no Post Office. There is a Bar that is open still and an old run down store." --Irene Lawson, 1995
Dickey
Ellis
Goldburg
Houston (historical) An old mining town; after the railroad came to the Lost River Valley in 1903, Houston was abandoned.
Lost River
Mackay
Stanley

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