A marker commemorating Golconda's varied history of mining, railroading, and a popular hot springs resort.
Golconda is a one time Utah Territory mining town whose hot springs, a landmark on the California Emigrant Trail, were of more enduring fame than its gold and silver boom.
In 1868, Golconda became an ore shipping station on the new Central Pacific Railroad. Renewed activity in 1897 resulted in the narrow-gauge Golconda and Adelaide Railroad to the Adelaide mine. Golconda grew to 500 inhabitants by 1899, but the next year the mine and mill closed and railroad service ceased.
The hot springs (97 to 150 degrees Fahrenheit) flow at about 100 gallons per minute. A rare occurrence of tungsten in the silica deposit of a fossil vent, one mile east, was once mined. Active vents north of the railroad tracks were the site of a famous health resort hotel which burned in 1961.
NOTES: Although  Golconda is an historically interesting marker, its placement ... well ... sucks. In fact, this marker has been placed at a very inconvenient and rather peculiar location! First, like any interstate marker ("located along Interstate 80"), finding this marker can be tricky to find simply because  blends in perfectly with the old-town scene. You must use Exit 194, then turn right toward Golconda. If you've gone past the old repair shop, you've gone too far.  Golconda is located right in front of a local's yard and don't be surprised if you're greeted by his harmless guard dogs. I'm currently in touch with the SHPO to see if they can relocate this one to a bit more of a public place.
Another terrible placement by the SHPO! This marker would be better moved to a location like the original Golconda Hot Springs Resort, or maybe at the pavement end of SR 789. Nope, not this time. We get a wonderful view of a tractor and somebody's mobile. Hot inspiration.