
Rimini sits along the western edge of this survey, serving as a gateway to a landscape defined by extensive extraction and high-altitude water management. The terrain is densely marked with signs of historic mining activity, including the Ida May Mine, numerous unnamed Mine Shafts, and scattered Adits throughout the Frohner Basin and Cataract Basin. This infrastructure is interspersed with complex hydrological features like the Chessman Reservoir, which includes a visible Causeway, and various alpine lakes such as Park Lake and Quartz Lake. The overlap of the Helena National Forest and Deerlodge National Forest highlights the region's transition between managed wilderness and industrial heritage, where the geography is etched with 4wd tracks leading to remote Prospects and high meadows like Black Hall Meadows and Horsethief Park.
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This is the sole edition of this map. No revisions or reprints were ever made.
1889 · Helena
USGS Topo · 1:250,000
1893 · Helena
USGS Topo · 1:250,000
1899 · Boulder
USGS Topo · 1:125,000
1899 · Helena
USGS Topo · 1:62,500
1899 · Helena
USGS Topo · 1:250,000
1903 · Helena
USGS Topo · 1:250,000
1947 · Butte
USGS Topo · 1:250,000
1950 · Jefferson City
USGS Topo · 1:62,500
1950 · Helena
USGS Topo · 1:62,500
1954 · Basin
USGS Topo · 1:62,500