Bayhorse and its surrounding mining claims define this portion of Custer County, Idaho, where deep gulches and high peaks reveal a long history of mineral extraction. The landscape is dominated by the steep elevations of Ramshorn Mountain and Keystone Mountain, with numerous historic operations such as the Keystone Mine, Skylark Mine, and Ramshorn Mine tucked into the drainages of Garden Creek and Bayhorse Creek.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Bayhorse
USGS Topo · 1:125,000
1956 · Challis
USGS Topo · 1:62,500
1956 · Twin Peaks
USGS Topo · 1:62,500
1957 · Challis
USGS Topo · 1:250,000
1960 · Challis
USGS Topo · 1:250,000
1963 · Challis
USGS Topo · 1:250,000
1963 · Bald Mountain
USGS Topo · 1:24,000
1963 · Bayhorse Lake
USGS Topo · 1:24,000
1963 · Bayhorse
USGS Topo · 1:24,000
1963 · Clayton
USGS Topo · 1:24,000