Almaden Valley Has Two Trail Systems, and This Month the Difference Actually Matters

If you've ever tried to beat the gate at the Mount Umunhum trailhead before sunrise, you've probably run into the trick regulars pass along on trail forums: park across the intersection at the county lot instead, since hikers report it's accessible earlier than Sierra Azul's gated summit lot. It's a small piece of local knowledge, but it points to something bigger. The lot on one side of that intersection belongs to Santa Clara County. The lot on the other side belongs to the Midpeninsula Regional Open Space District. Different agency, different rulebook, different hours, and right now, in August 2026, a different status entirely.

Most people who live in Almaden Valley just call all of it "the trails." That habit is harmless most weeks. This week it isn't, because one of those two systems is mid-repair and the other is about to host a race.

One Address, Two Rulebooks

Almaden Quicksilver County Park and the Sierra Azul Open Space Preserve share a border, a mountain, and a reputation, but they are run by entirely different governments with entirely different policies.

The county park has no fee and welcomes dogs everywhere. Sierra Azul, which includes the Mount Umunhum Trail, doesn't allow them on that particular route. If you've been letting your dog off leash on "the mountain" without thinking too hard about which mountain, you've likely been on the county side the whole time, which is fine, except it means you've never actually noticed the rule changes the moment you cross into Midpen land.

Why August 15 and August 27 Are Both on the Calendar, for Different Reasons

Two dates this month land on opposite sides of that same fence line, and confusing them will genuinely wreck your plans.

The first is August 15, when the Almaden Hills Trail Run - Summer Edition takes over Almaden Quicksilver County Park for a half marathon and full marathon, both starting at 8 a.m. The course is roughly 60 percent dirt road and 40 percent singletrack, with a total ascent of 6,916 feet across the marathon distance, routed through aid stations at the Hacienda and Mockingbird parking lots. For comparison, the entire out-and-back hike to the Mount Umunhum summit on the Sierra Azul side gains only about 1,141 feet. This is not a casual weekend jog. If you live near the Almaden Road or Mockingbird Hill entrances, expect parking pressure and trail traffic that morning, all of it contained to the county park side.

The second date is August 27, the tail end of an active trail work notice currently posted on Midpen's own Sierra Azul preserve page. The notice states the work is expected to run through that date, with the affected route open on weekends in the meantime. This is the Sierra Azul side, not the county park, which means the race on the 15th and the construction through the 27th are two unrelated events happening on two different pieces of land that most residents mentally file under the same heading. If your Saturday routine involves both a training run through Quicksilver and a summit push up Umunhum, you're now navigating two separate sets of conditions in the same outing.

Thursday Nights Still Belong to Greystone Park

Away from the trailheads, the summer's other fixture keeps its rhythm. The Almaden Summer Concert Series, put on by the Almaden Community Center in partnership with Lazy Dog Restaurant, runs 6:30 to 8 p.m. at Greystone Park, with lawn chairs and a picnic dinner being the unofficial dress code. This year's lineup covers a lot of ground: The Iconics playing 60s rock, pop, surf and soul; Chain of Fools working through rock and blues dance tunes; the Country Cougars covering modern and classic country; and the ten-piece Houserockers closing things out with rock and soul standards. It's the kind of low-stakes weeknight plan that doesn't require a reservation, a babysitter, or much advance thought, which is probably why it's lasted as long as it has.

A few weeks earlier, Almaden Lake Park hosted its own seasonal marker, the Water Lantern Festival, over the weekend of July 17 through 19. Between that, the concert series, and the trail run now on the calendar, the neighborhood's outdoor life in August has more going on than the quiet suburban reputation usually suggests.

The Restaurant Corner That Won't Sit Still

Almaden Valley's food scene doesn't turn over often, which makes the changes worth noticing when they happen. Freshest Pizza, an artisan New York-style pizzeria built around long-fermented, house-made dough, has become one of the newer names locals mention when asked where to grab a slice. A few miles away, at the corner of Almaden Expressway and Via Valiente, Sabores of the Valley has kept its Friday night patio series running, live music from 5 to 9 p.m., alongside a wine list that leans into Portuguese and Argentine bottles rather than the usual Napa defaults. The restaurant has had the same owner since September 2019, which in a neighborhood this size counts as an institution in the making.

And then there's La Foret, the valley's long-standing French restaurant, set in a creekside building that started out as a boarding house for the miners who once worked New Almaden's mercury mines. It's a five-minute drive from Alamitos Vineyards, the only vineyard winery within San Jose's city limits, which makes the pairing of farm-to-fork French food and a genuinely local pour less of a coincidence than it sounds.

None of this is dramatic change. It's the kind of texture that only shows up when you've been paying attention for a while, which is exactly the point. A neighborhood that looks static from the outside is still quietly sorting out which restaurants stick and which trail rules actually apply to you on a given Saturday.

If you've lived in Almaden Valley long enough to have opinions about which entrance to Quicksilver has the better parking, you already know the neighborhood rewards this kind of attention. And if a day ever comes when you're weighing what your home here is worth, or what else might work for the next stage of your life, Kelly Dippel has spent years paying exactly this kind of attention to Almaden Valley and the rest of Santa Clara County. A complimentary home valuation is a low-pressure way to find out where you stand, whenever that day comes.