Yerba Buena to Halls Valley Trail Loop

moderate 36 reviews

Yerba Buena to Halls Valley Trail Loop is a 6.7 mile moderately trafficked loop trail located near Mount Hamilton, California that features a lake and is rated as moderate. The trail offers a number of activity options and is best used from April until October. Dogs are also able to use this trail.

Distance: 6.7 miles Elevation Gain: 1,246 feet Route Type: Loop

dog friendly

hiking

mountain biking

nature trips

walking

bird watching

running

lake

partially paved

views

wild flowers

over grown

no shade

Note: As of April 2019, the McCreery Lake Trail is CLOSED due to flooding. Please refer to the park page for updates. One of the best hikes in the county park in the hills east of San Jose, California This is one of my favorite loops in Joseph D. Grant County Park in the hills east of San Jose. It starts at Halls Valley Lake and climbs steeply into the nearby hills along the Yerba Buena Trail (with a highly recommended side trip to McCreery Lake). It turns at the Canada De Pala Trail and returns on the Halls Valley Trail. Along the way you'll see sweeping vistas of the nearby Diablo Range along with the observatories atop Mount Hamilton, the highest peak in the South Bay. Wildlife sightings are common: hikers have spotted coyotes, turkeys, bobcats, feral pigs, tarantulas and even the occasional mountain lion. In springtime, this is one of the best wildflower locales in the Bay Area. Summer's too hot but winter's great (if muddy) and fall is interesting when the tarantulas come out. The park sits on lands once owned by a prominent ranching family (hence the informal title "Grant Ranch"). The hiking can be arduous -- many of the rails were built for people on horses rather than on foot -- but what you can see along the way makes it worth every arduous step.

hiking
no shade
10 days ago

This trail was good until you pass by cows they were very mean and charge at you. I was supper scared because they are large cows and they were not slow either I do not recommend this trail unless you have a dog with you to heard them cows away from you

This was a really good trail. I started out in the morning around 9am. It was warm day. Make sure to take plenty of water. In the beginning is mostly climbing up. But wants you get to the top the views are amazing. Lick observatory is visible when reach the top Yerba buena trail. And the rest of the view is just amazing. The Dissent back is nice, some shade, is like you entered a completely different place, so the sights are enjoyable. You won’t be disappointed I’ll say that.

hiking
muddy
no shade
10 months ago

hiking
muddy
over grown
washed out
Sat Jan 26 2019

McCreary lake from trail head via Halls Valley Trail. Connect with Loop Trail, to reach Yerba Buena trail, and return via Yerba Buena (forms a loop, but short section missing from recording). Trail's path is not clear at McCreary Lake. We had to ford the creek/spillway to get to the west side of the lake and join Loop Trail. Parking at trail head is limited. Additional parking at Joseph D Grant Park. Access to trail head from park parking lot via hotel trail.

hiking
Wed May 23 2018

This looked like a nice day hike, so I attempted it in the CCW direction. The Yerba Buena Trail narrows down to single track, and I found myself dodging poison oak growing out over the trail. It soon became so thick that I gave up and turned around. I then went up the north side of the loop (Halls Valley Trail), which is a nice wide road/trail. The views were fantastic in April, with green hills and oaks, and a peek through the other side of the basin to Silicon Valley at the top. I came down the Los Huecos Trail, which was wide but very steep. TLDR: Halls Valley Trail is great. Yerba Buana Trail is overgrown with poison oak and impassable. Los Huecos Trail is very steep.

hiking
10 days ago

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2 months ago

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4 months ago

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4 months ago

hiking
10 months ago

hiking
11 months ago

hiking
Thu Feb 21 2019

hiking
Sun Feb 17 2019

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