Near Leadore in Lemhi County, Idaho — The American West (Mountains)
Gilmore
Lack of a good transportation system delayed serious lead and silver mining at Gilmore from 1880 to 1910.
Construction of a branch railroad from Montana to serve this mining area resulted in a production of $11,520,852 before a power plant explosion halted operations here in 1929. Old Gilmore and Pittsburgh Railway grades are visible north of here, and remnants of Gilmore, where current residents still preserve its heritage, remain from that bygone mining era.
Erected by Idaho Department of Transportation. (Marker Number 234.)
Topics and series. This historical marker is listed in these topic lists: Industry & Commerce • Settlements & Settlers. In addition, it is included in the Idaho State Historical Society series list. A significant historical year for this entry is 1880.
Location. 44° 27.402′ N, 113° 14.472′ W. Marker is near Leadore, Idaho, in Lemhi County. It is at the intersection of State Highway 28 and Gilmore Road, on the right when traveling north on State Highway 28. Touch for map. Marker is in this post office area: Leadore ID 83464, United States of America. Touch for directions.
Regionally, this marker is in Central Idaho Sawtooth Range. It is also in the American Mountain West and in the Lewis & Clark Corridor. Globally, it is in North America, the Rocky Mountains, the Western Hemisphere, the Western World, and the Anglosphere.
Other nearby markers. At least 8 other markers are within 11 miles of this marker, measured as the crow flies: Viola - The Mine (approx. 10½ miles away); Brick (approx. 10½ miles away); The Back Door (approx. 10½ miles away); Wood (approx. 10½ miles away); Kilns (approx. 10½ miles away); Charcoal (approx. 10½ miles away); Preserve and Protect (approx. 10½ miles away); Once Upon a Time (approx. 10.6 miles away). Touch for a list and map of all markers in Leadore.
Also see . . . Gilmore Ghost Town. Atlas Obscure website entry (Submitted on February 25, 2026, by Larry Gertner of New York, New York.)
Credits. This page was last revised on February 25, 2026. It was originally submitted on October 30, 2017, by Barry Swackhamer of Brentwood, California. This page has been viewed 921 times since then and 74 times this year. Photos: 1, 2, 3. submitted on October 30, 2017, by Barry Swackhamer of Brentwood, California.
Editor’s want-list for this marker. There are six markers in Gilmore (see Links); someone should go and get them. • Can you help?


