🏆 Official Guide: Malakoff Diggins State Historic Park — A 3,000-acre park in the Sierra Nevada foothills of California, preserving the site of the world’s largest hydraulic gold mine — featuring the restored ghost town of North Bloomfield, a dramatic mile-long mining canyon, Blair Lake swimming, 20+ miles of hiking trails, camping, gold panning, and the historic legacy of the 1884 Sawyer Decision (America’s first environmental law).
Malakoff Diggins State Historic Park tells the dramatic story of Gold Rush-era hydraulic mining — and the environmental catastrophe that ultimately led to the first environmental law in the United States. The park preserves a massive man-made canyon (over a mile long, up to 600 feet deep) carved by high-pressure water cannons, alongside the restored ghost town of North Bloomfield and miles of scenic Sierra Nevada trails.
Visitor Information
| Detail | Information |
|---|---|
| Location | Near Nevada City, Nevada County, CA |
| Size | 3,000 acres |
| Camping | Chute Hill Campground + rustic miner’s cabins |
| Swimming | Blair Lake — no lifeguards |
| Trails | 20+ miles |
| Access Warning | Do NOT rely on GPS — use Tyler Foote Rd from Hwy 49 |
Key Features
| Feature | Details |
|---|---|
| Hydraulic Mining Pit | Mile-long, 600-ft deep — world’s largest historic hydraulic mine |
| North Bloomfield | Restored ghost town — saloon, pharmacy, general store, museum |
| Sawyer Decision (1884) | First U.S. environmental law — banned large-scale hydraulic mining |
| Blair Lake | Former mine holding pond — swimming, fishing (bass, bluegill, trout) |
| Gold Panning | Demonstrations + designated areas |
| Humbug Day Festival | Annual celebration of Gold Rush history |
Trails
| Trail | Highlights |
|---|---|
| Diggins Loop Trail | Views of the massive hydraulic mining pit |
| Rim Trail | Canyon-edge views — dramatic geology |
| South Yuba Connector | Links to South Yuba River trail network |
| Town Trail | Guided and self-guided tours of North Bloomfield |
Frequently Asked Questions
What was the Sawyer Decision?
The 1884 Sawyer Decision was the first environmental law in U.S. history. It effectively banned large-scale hydraulic mining after the devastating environmental damage caused by operations like Malakoff Diggins — where high-pressure water cannons washed away entire mountainsides, clogging rivers and causing severe flooding in downstream communities like Sacramento and Marysville.
Is North Bloomfield a real ghost town?
Yes — North Bloomfield was a thriving Gold Rush town in the 1870s-1880s. Today, several original and restored buildings (saloon, pharmacy, general store) remain as part of the state park. A museum in the park provides artifacts and history from the town’s peak and decline.
More parks nearby: Empire Mine State Historic Park is a short drive away, while South Yuba River State Park lies within about an hour’s drive.
Park Location
Plan your gear for Malakoff Diggins State Historic Park
From our editorial guides, matched to this park’s activities:
