dogs on leash

trail running


nature trips



wild flowers



mountain biking

kid friendly

Almaden Quicksilver County Park is in the southern end of San Jose, California, in the hills overlooking Silicon Valley. The park occupies the site of a former quicksilver (aka mercury) mine that at one time was among the largest of its kind in the world. Relics of the mine still stand at the park. The park includes over 34.2 miles of hiking trails, including 23 miles of equestrian trails and 10 miles of bike trails.

came there in between the rain season. Tones of green and fresh air

on New Almaden Trail

5 days ago

Great forested canopy trails for most of it, so can protect you from sun. Elevation inclines are great for work outs like rucking or running.

During rain some trails turn to small creeks but not too bad if prepared.

Saw some wild life such as birds and deer. Definitely recommend for a 10-miler +

Creds: AllTrails Pro for accurate real-time off line GPS location and mileage tracking. ~6.5 mi. ~1,000’ El Gain. Little longer since great detours

Went Wednesday afternoon 2 January 2018, ~2:pm.

Parking free. Fire roads/ trails in excellent condition.

Saw playful Bobcat . Bobcat Walked ahead on fire road, stopped and did roles multiple times.

Lots to see aside from gorgeous views; old mine entrance, historic mining town and cemetery.

11 days ago

Love this trail! My husband & I have hiked these trails a bunch of times. Nice views & history. Simple hike & close to home.

Definitely moderate. I took a few wrong turns and made it 10.1 miles. The Prospect trail is a fun single track trail where you feel like your out in the wild

Nice shady hike and challenging uphills. Pretty scenery but so much dog poo that they should not be allowed to bring them if they are not willing to pick up after themselves.

dog friendly but on leash, good trail well kept, decently marked.

17 days ago

Short and easy and not too crowded. The hills being reflected in the lake look great at sunset. Better trail during winter or non sunny days.

Great hike to do with kids!

We enjoyed this hike very much. There were a few steep sections but overall a relaxing, beautiful park.

29 days ago

lots of thigh work but the scenery is worth it!!!

The Webb Canyon Trail section at the bottom is particularly beautiful in the fall when a lush cover of new grass covers the hillside.
The New Almaden Trail section is narrow and shaded, zigzagging along the canyons of the Almaden hills.
The Randol and Mine Hill trails at the top are more conventional, much wider trails and are the main arteries of the Almaden Quicksilver County Park.

1 month ago

Great place for hiking, biking etc. Highly recommend to those who want a good hike within San Jose without commuting.

on Mine Hill Trail Loop

trail running
1 month ago

The history of this area itself is great! Beautiful on an overcast day. There are mountain lions here and wild pigs. Another hiker said he saw two mountain lions right before we met each other on the trail. I spotted multiple deer. If you go fishing in the reservoir, it’s suggested to not eat the fish high in mercury.

Seemingly endless combinations of hike-able units... I’m biased but not sure there is a better mix of loop options for 2-5+ hikes.

1 month ago

Loved this trail that we recently hiked with kids. A bit crowded but with family it worked great and was a good work-out as well.

Great trail for my man and small pup. Lots of beautiful sights and varying terrain.

This was a lot more incline then we expected. There's over 600 ft of elevation. We took the English Camp to Deep Gulch route. Deep Gultch is very shaded while the English Camp portion is mostly sunny. English Camp was winding and slower elevation where Deep Gultch was a very steep incline/decline.

Fun little loop to run

2 months ago

Need better trail markings. No bathrooms, but porta potties.

Nice shaded trail on a hot day. We had fun exploring the historic sites along the trail and we even saw a few deer at the end!

3 months ago

There are mountain lions here! We were able to take our dog on a leash and did about 4 hours of hiking into different tails. We did notice however that there weren’t many people on the trails which is how we saw the mountain lion taking a nap on the trail. When there’s less foot traffic it can be dangerous. Overall it’s decently covered with trees and the weather can be warm.

Easy hike, rolling hills, but nothing hard. Dog allowed on a leash.

lots of shade on Mine Hill. my 10 & 8 yr old managed well and this is about their limit. there definitely is some incline. would do again.

4 months ago

Absolutely stunning views! Some of the trail is shaded but some isnt so dont forget sunscreen!

Great hike or a train for running. Bring more water than you think is necessary as it’s 75% open, especially if you’re doing it on the hot day like we did. Otherwise great views and really good wide path most of the way. Great for kids too and there are benches to rest at peaks.

Hiked, walked and jogged these trails dozens of times. Lots of wild life to be seen!

4 months ago

take the southern Loop first thing in the morning when you set out, and your return trip will be on the north side of the Hill and in the shade.

Nice wide trail but very little shade, i'm sure it would be fantastic to hike this in late fall, winter or spring. Summer is too hot and sunny, at least in my opinion :)

Really rocky and bushes are really long and wild. True nature if you are looking for that. No views.

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