Entry No. 35 — the Santa Cruz file — filed under: mine
Enriquita Mine
Established in the 1850s, the Enriquita Mine was a productive cinnabar mine that supplied mercury to the California Gold Rush. Today, the site is preserved within Almaden Quicksilver County Park, where the historic shafts have been sealed for safety. Hikers can explore the area via the Enriquita Trail to see rusted remnants of old mining equipment amidst scenic views of the Santa Cruz Mountains.
The story
In the 1850s, while thousands scrambled through Sierra streams looking for gold, places like Enriquita were doing the toxic heavy lifting. Cinnabar dug out of these hills yielded quicksilver—mercury—the volatile element required to process Gold Rush ore. Tucked into what is now Almaden Quicksilver County Park, Enriquita was a rough-and-tumble satellite camp with its own cantina, where on June 4, 1864, the notorious California bandit Tiburcio Vasquez and his cousin Faustino Lorenzana were spotted gambling before slipping back into the hills.
When the ore thinned out, the drill rigs quieted, leaving behind a industrial graveyard slowly swallowed by oak scrub and chaparral. Environmental researchers still hang moss and lichen samples in the surrounding foliage to measure trace mercury lingering in the air, but the surface world has mostly settled back into quiet country trails.
What it's like
Expect a moderately steep, sun-exposed dirt trek along the Enriquita Trail inside Almaden Quicksilver County Park. Don't show up expecting to crawl into subterranean adits—the historic underground mine shafts are solidly sealed and off-limits. What you will find are heavy, rusted pieces of 19th-century iron machinery sitting right where they were abandoned, framed by views down toward Guadalupe Reservoir and the Santa Cruz Mountains.
The move: Take a scenic hike along the Enriquita Trail to enjoy the wildflowers, view the Guadalupe Reservoir, and photograph the rusted historic mining machinery left at the old mine site.
📍 Before you go The mine site is located within a public county park and is accessible via hiking trails, but the dangerous underground shafts and workings are sealed and strictly off-limits.
- 📍 Los Gatos
- 💸 Free
- ⚡ Low-key
- 🌗 Outdoors
Where: Los Gatos, CA 95032, USA
Hours: Added 2026-07-20 — confirm current access before you go.
Pair it with
- Senator Mine — Pair two historic quicksilver operations within less than two miles of each other inside the same park.
- Holy City Art Glass — Trade 19th-century mercury mining remnants for a working glass studio inside the ruins of a 1920s cult compound in the nearby mountains.
- Old Lime Kiln Ruins — Match the rusted quicksilver machinery of Los Gatos with moss-grown 19th-century stone lime kilns hidden deep in Felton's redwoods.
Good to know
How do you access the mine site?
You reach the historic site on foot via the Enriquita Trail within Almaden Quicksilver County Park.
Can you go inside any of the mine shafts?
No. All underground shafts and historic workings are permanently sealed for safety and strictly off-limits.
What is left to see on the trail?
You'll encounter scattered, rusted remnants of 19th-century heavy mining machinery along with scenic viewpoints overlooking Guadalupe Reservoir.
Is there an entrance fee or permit required?
The park is public, but you should confirm current trail conditions and park access before heading out.
Plan a visit & invite your people →
Further reading: hikingproject.com · parks.sccgov.org · cdcr.ca.gov · frontiersin.org · Reddit
last checked: 2026-07-20