Twin Bridges serves as the focal point of this Madison County landscape, situated at the significant confluence where the Big Hole River, Beaverhead River, and Ruby River unite to form the Jefferson River. The topography is defined by this intricate hydrography, featuring numerous irrigation and drainage channels such as Cornforth Ditch, Seyler-Tash Ditch, and Jacob Slough that support the local ranching economy. To the east, the terrain rises into Goodrich Gulch and Dry Georgia Gulch, while the valley floor is dotted with family-named landmarks and infrastructure including Bayers Ranch Rd and the Twin Bridges Airport. Local history is anchored by the Masonic Cem and Twin Bridges Cem, which provide essential touchpoints for genealogical research. The mapping of Hells Canyon and Bain Springs in the northern sections further illustrates the transition from the fertile river basin to the more arid upland country.
53 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1893 · Dillon
USGS Topo · 1:250,000
1955 · Dillon
USGS Topo · 1:250,000
1957 · Dillon
USGS Topo · 1:250,000
1958 · Dillon
USGS Topo · 1:250,000
1960 · Twin Bridges
USGS Topo · 1:62,500
1960 · Waterloo
USGS Topo · 1:62,500
1962 · Dillon
USGS Topo · 1:250,000
1962 · Beaverhead Rock
USGS Topo · 1:24,000
1962 · Beaverhead Rock NE
USGS Topo · 1:24,000
1963 · Sheridan
USGS Topo · 1:24,000