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Historic place

Homestake Slime Plant (Deadwood Mountain Grand)

1906 Deadwood Mountain Drive, Deadwood, SD

A gold-processing plant built with Douglas fir beams railed in from Washington State ran until 1973, then sat as a county equipment shop for years before a $43 million renovation turned it into a Holiday Inn casino resort.

📅 until 1973🏛️ CasinoRepurposed
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The story

The Homestake Slime Plant processed "slimes" — the ultra-fine ore byproduct left after milling — using a cyanide extraction process, built in the early 20th century with massive Douglas fir beams shipped by rail from Washington State. It served Homestake Mining Company until 1973, when process changes moved ore handling closer to the Lead mineshaft. Part of the building later became a Lawrence County equipment shop, then sat idle for years. Around 2011 a roughly $43 million redevelopment transformed it into Deadwood Mountain Grand — a hotel, casino, restaurant, and 3,000-capacity entertainment venue (a Holiday Inn Resort) — with the mining-era facade preserved.

Everything that was here

Did you know?

The building's structural beams were Douglas fir shipped by rail all the way from Washington State.
After the plant closed in 1973, the county used part of it as a heavy-equipment repair shop.
Its 2011 conversion into Deadwood Mountain Grand cost around $43 million, keeping the industrial facade.

Connected places

Homestake Gold Mine

Lead, SD
Homestake Mining Company

Historic Homestake Opera House

Lead, SD
Homestake Mining Company

Route 66 Hotel & Conference Center

Springfield, IL
Holiday Inn

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Nearby history

Mollie Johnson's Brothel

100 Sherman Street · 121 m away

Historic Franklin Hotel

700 Main St · 176 m away
Deadwood's first grand hotel opened in 1903 with an elevator, electric lights, and telephones — and hosted two future pr

Adams Museum

54 Sherman St · 208 m away
A Deadwood businessman gave the town its first museum in 1930 — and it's still city property nearly a century later.

The Midnight Star

677 Main St · 265 m away
Kevin Costner turned a historic Deadwood building into his own casino after falling in love with the Black Hills filming

Deadwood Main Street Historic District

Historic Main Street · 290 m away
A gold-rush boomtown, gutted twice by fire and left to fade, saved itself in 1989 by legalizing the very vice — gambling

Old Style Saloon No. 10

657 Main St · 345 m away
"The only museum in the world with a bar" — and it's NOT where Wild Bill was shot, though it has spent 90 years happy to

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Sourceshttps://deadwoodmountaingrand.com/history/