Chilly and the surrounding Thousand Springs Valley define the character of this Custer County landscape. The geography is centered on the Big Lost River, which is flanked by the namesake Chilly Buttes and distinctive landforms like Swensen Butte and Bartlett Point. Water management is evident through the Chilly Canal, a critical component for agriculture on the Barton Flats. Local history and genealogy interests are anchored by the Chilly Cem, while the Big Lost River Upper Access Area marks a modern point of interaction with the river. The map also traces a network of rural routes including Sage Creek Rd and Peck Canyon Rd, which connect these high-valley settlements and agricultural basins.
33 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1895 · Hailey
USGS Topo · 1:125,000
1897 · Hailey
USGS Topo · 1:125,000
1929 · Bayhorse
USGS Topo · 1:125,000
1935 · MacKay
USGS Topo · 1:96,000
1935 · Borah Peak
USGS Topo · 1:125,000
1938 · Borah Peak
USGS Topo · 1:125,000
1955 · Dubois
USGS Topo · 1:250,000
1955 · Idaho Falls
USGS Topo · 1:250,000
1955 · Hailey
USGS Topo · 1:250,000
1957 · Challis
USGS Topo · 1:250,000