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White Knob

Ghost town · Custer County, Idaho

Mackay quadrangle, USGS topographic map (1940, 1:62,500)
Mackay quadrangle, USGS topographic map (1940, 1:62,500) · U.S. Geological Survey, Historical Topographic Map Collection · Public domain

White Knob is a ghost town in Custer County, Idaho. It is one of 9 former communities in Custer County on the federal names register. That ranks the county 4th among the 36 Idaho counties with a vanished settlement on record.

The U.S. Geological Survey lists White Knob as a historical populated place on the Mackay Reservoir topographic quadrangle: the name is no longer in official use for a community, whether the settlement was abandoned, absorbed into a neighbouring town or renamed. The recorded location is 43.8924° N, 113.6703° W.

Key facts

USGS quadrangleMackay Reservoir
Elevation7,446 ft
Nearest living townMackay, ID
Distance to it3.2 miles
GNIS feature ID399720
Coordinates43.89241, -113.67030

Open the location on a map

What's there now

White Knob is no longer a community in its own right. The nearest living town is Mackay, ID (population 719), about 3.2 miles away in a straight line, and the site sits at roughly 7,446 feet above sea level. Much of the land around former townsites is private; check access before you visit.

Nearby places

Questions

Where is White Knob?

White Knob is in Custer County, Idaho, at 43.8924, -113.6703.

How many ghost towns are in Custer County?

Custer County, Idaho has 9 ghost towns on record at Wayfarrow.

Sources and licences

Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.