Overview
About This Fishery
Not to be confused with Almaden Lake Park, Almaden Reservoir sits in the foothills south of San Jose, bordered by the 4,163-acre Almaden Quicksilver County Park. The park's name tells you everything about the mercury history here — the New Almaden mine was one of the most productive quicksilver mines in North America, and that legacy means a hard Do Not Eat advisory on all fish. But the fishing itself can be excellent.
No boats or swimming are permitted, making this a pure bank fishing experience. The shoreline trail gives anglers good access around much of the lake. Largemouth bass, crappie, and bluegill are the consistent producers. Rainbow trout are stocked in cooler months by CDFW, adding a welcome seasonal option.
The surrounding park is genuinely beautiful — trails wind through oak woodlands, and wildlife sightings are common. It's a great spot to combine a hike with a few hours of fishing. Expect solitude on weekdays; local neighborhoods fill the park on weekends.
What's in the Water
Target Species
The main draw. Fish routinely run 2–5 lbs; giants over 7 lbs are reported. Focus on weed edges, coves, points, near the dam, and just outside the cat-tails.
Excellent near the launch dock and deep in coves.
Abundant and fun on light tackle. Try tiny poppers and let me know what you come up with.
Active at night along the bottom near the dam. Cut bait and stink bait are the go-to presentations.
Stocked seasonally in winter and spring by CDFW. Check the current fish planting schedule at wildlife.ca.gov.
Tactics by Season
When & How to Fish
- Bass move shallow for spawn — prime time
- Work rocky points and weed edges with jigs
- Crankbaits along structure in 3–8 ft of water
- Trout stocking may extend into early spring
- Fish the first two hours of daylight
- Bass retreat to shaded, deeper structure midday
- Topwater at dawn near overhanging tree canopy
- Catfish night bite along the bottom near the dam
- Bass feeding aggressively before winter
- Chatterbaits and crankbaits in shallower water
- Crappie bite picks up — small grubs in coves
- Cool, calm mornings can produce spectacular fishing
- Trout stocking season — check the CDFW plant schedule
- PowerBait and small spoons for stocked trout
- Bass slow significantly — finesse tactics only
- Midday is the prime window when temps warm up
Know Before You Go
Regulations & Access
- California Sport Fishing License required for anglers 16 and older
- "Do Not Eat" advisory in effect for ALL fish — catch-and-release strongly recommended
- No boats or watercraft permitted on the reservoir
- No swimming allowed — Santa Clara Valley Water District restriction
- Live bait is prohibited — artificial lures and dead/prepared bait only
- All state fishing regulations apply within county park boundaries
- Access via Almaden Expressway to Almaden Road into Almaden Quicksilver County Park
- Park hours and entrance fees apply — check Santa Clara County Parks for current info
Regulations change seasonally. Always confirm current rules at CDFW.ca.gov before heading out.