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State Park

Empire Mine State Historic Park

10791 E Empire St

Grass Valley, CA

The mouth of a gold mine that ran for more than a century and a hundred miles down and out under the hills, next to the elegant stone cottage the wealth built.

Empire Mine was one of the oldest, deepest, and richest hard-rock gold mines in California, and it ran, in one form or another, from the Gold Rush until the middle of the twentieth century. At its heart is the mouth of the main shaft, a timbered incline that drops steeply into darkness, the top of a vast network of tunnels that reached more than a mile deep and honeycombed hundreds of miles of rock beneath these quiet foothills.

The other half of the story stands a short walk away: the Bourn Cottage, a graceful stone house with formal gardens, built from the gold the mine gave up. Together the grimy headframe and the elegant cottage tell the whole arc of California mining, the immense wealth pulled from the ground and the world that wealth built above it.

What Travelers Love

  • Peering down the timbered main shaft into the black where miners once rode a mile underground
  • The elegant Bourn Cottage and its formal gardens, built from the mine's fortune
  • The clanking headframe, hoist works, and stamp-mill machinery of a real industrial mine
  • Miles of walking and biking trails over the honeycombed hills

Worth Knowing

  • The underground workings are flooded and sealed, so you tour the surface buildings and shaft mouth, not the tunnels
  • The cottage is seen by tour or open on a schedule, so check current hours before you go
  • Foothill summers get hot, so the shaded grounds and morning visits are more comfortable
  • It is a large site of buildings, machinery, and trails, so allow a couple of hours

Learn about Empire Mine State Historic Park

A century of gold

This foothill country is the homeland of the Nisenan, a Southern Maidu people who lived along these rivers and ridges for countless generations before the Gold Rush overran their world in a single violent decade.

Gold was found in the Grass Valley quartz in 1850, and unlike the placer gold panned from streams, this was hard-rock gold locked in veins that had to be blasted, hauled up, and crushed. The Empire grew over the following century into one of the greatest gold mines in California history, eventually producing millions of ounces before it closed in 1956, when the fixed price of gold and the cost of ever-deeper mining finally made it unprofitable.

The workings that remain sealed and flooded below the park are staggering in scale: a maze of tunnels totaling hundreds of miles, descending more than eleven thousand feet along the incline. A famous scale model inside the park lets you grasp the three-dimensional labyrinth that once hummed with men and machinery under your feet.

The Cornish miners

The Empire and its neighbors ran on the skill of Cornish hard-rock miners, who came from the tin and copper mines of Cornwall in England as those failed, bringing generations of underground know-how. They were so numerous in Grass Valley that they were nicknamed Cousin Jacks, and their culture reshaped the town.

The Cornish brought their powerful pumps to keep the deep shafts from flooding, their methods of timbering and blasting, and their food. The Cornish pasty, a hearty hand-held meat-and-vegetable pie a miner could carry underground and eat without washing his hands, became and remains a Grass Valley institution. The town's Cornish carol-singing tradition still echoes their homeland at Christmas.

The cottage the gold built

For decades the mine was owned by the Bourn family, and William Bowers Bourn II built a country home at its edge that could not be more different from the shaft down the path. The Bourn Cottage, designed by the noted San Francisco architect Willis Polk, is a warm, English-style manor of local stone with leaded windows, rich woodwork, and formal gardens, reflecting pool, and fountains.

Walking from the sooty headframe to the cottage in a few minutes is the point of the park. It lays the two sides of a mining fortune right next to each other, the dangerous labor a mile underground and the graciousness it paid for at the surface.

The grounds and trails

Above ground, the park preserves the industrial heart of the operation: the headframe over the shaft, the hoist house that lowered men and ore, the machine shops, and the yard of heavy equipment, all set among the pines. Interpretive tours and volunteers in period dress help bring the working mine to life.

Beyond the buildings, the wooded hills are laced with many miles of trails for walking, running, and mountain biking, following old mine roads through second-growth forest that has reclaimed the once-industrial landscape. It makes an easy add-on to a day exploring the historic towns of Grass Valley and Nevada City.

Closest Boutels

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is a place we chose through independent editorial review, never a paid placement.

Outside Inn

Boutel

575 E Broad St, Nevada City, CA

(530) 265-2233

4 miles away|Learn More ›

Tamarack Lodge

Boutel

2311 North Lake Boulevard, Tahoe City, CA

(530) 583-3350

50 miles away|Learn More ›

Firelite Lodge

Boutel

7035 North Lake Boulevard, Tahoe Vista, CA

(530) 452-0002

54 miles away|Learn More ›

Details

Address10791 E Empire St
Grass Valley, CA
Websiteparks.ca.govLink opens in a new tab.

Frequently asked questions

What is Empire Mine State Historic Park?

Empire Mine State Historic Park, in Grass Valley in California's Gold Country, preserves one of the oldest, largest, deepest, and richest gold mines in the state's history. Operating for over a hundred years, the Empire Mine produced an enormous fortune in gold from miles of underground workings before it closed. Today the park lets visitors explore the historic mine yard with its buildings and machinery, peer into the mine shaft, and tour the elegant Bourn Cottage, the owner's stone mansion, and its beautiful gardens. It offers a fascinating and vivid look at California's Gold Rush and hard-rock mining heritage.

What can you see at Empire Mine State Historic Park?

You can explore the historic mine yard with its headframe, buildings, and mining equipment, look down the main mine shaft into the depths where miners once worked, tour the beautiful Bourn Cottage, the mine owner's elegant stone mansion, and its lovely gardens, view a scale model of the vast underground workings, and hike trails on the grounds. Guided tours and exhibits bring the mining history to life. With its authentic mine structures, the grand cottage, and rich history, Empire Mine offers an engaging and educational experience of California's gold-mining past.

Can you go underground at Empire Mine?

No, visitors cannot go down into the mine itself, as the extensive underground workings are flooded and closed, but you can peer down the main shaft to get a sense of the depths, view a detailed scale model showing the miles of tunnels far below, and explore the surface mine yard and buildings. This lets you appreciate the scale and history of the mine without descending. The above-ground structures, the shaft viewpoint, the model, and the mansion together provide a rich picture of the mine's operation and the lives of those who worked it.

When is the best time to visit Empire Mine State Historic Park?

Spring and fall offer the most pleasant weather for exploring the outdoor mine yard, gardens, and trails, with spring especially lovely for the Bourn Cottage's roses and gardens, while summer can be warm and winter cool and sometimes rainy. Guided tours may follow seasonal schedules, so checking current hours and tour times before you go is wise. The gardens are at their best in the warm months. For comfortable exploring and beautiful gardens, spring and fall are ideal, though the historic park is rewarding year-round in Gold Country.

What is near Empire Mine State Historic Park?

The park is in Grass Valley in California's Gold Country, near the historic Gold Rush town of Nevada City with its Victorian downtown, the Malakoff Diggins hydraulic mining site, the South Yuba River, and other Gold Country attractions, with the Sierra Nevada foothills and Lake Tahoe within a drive to the east. That makes Empire Mine State Historic Park a fascinating stop to combine with Nevada City, Malakoff Diggins, and the historic mining towns and scenery of California's Gold Country on a Northern California visit.

Outside the Park

South Yuba River State Park

South Yuba River State Park

7.4 miles away

South Yuba River State Park protects a 20-mile stretch of the South Yuba River canyon in the Sierra Nevada foothills.

Learn More ›

Scotts Flat Lake

9.0 miles away

A pine-ringed mountain reservoir in the Tahoe National Forest above Nevada City, with clear water, sandy swimming coves, boat ramps, and two lakeside campgrounds tucked among the ponderosa.

Learn More ›

Malakoff Diggins State Historic Park

13 miles away

Malakoff Diggins is the scar left by the largest hydraulic gold mine in the world.

Learn More ›