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Black Mountain from Rhus Ridge, Rancho San Antonio

Great hike from Los Altos Hills, towering 2812' over Silicon Valley.
Rating: 4 out of 5 by EveryTrail members
Difficulty: Strenuous
Length: 9.8 miles
Duration: Full day

Overview :  Towering over Silicon Valley, waaaay back to the rear of Rancho San Antonio, lies 2812' Black Mountain. Starting at the little-known... more »

Tips:  Sturdy shoes, water, sun protection, and maybe some additional clothing, as the summit can be much cooler and more breezy than the... more »

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Points of Interest

1. Rhus Ridge Parking

The hidden Rhus Ridge parking lot is the starting point. Though it's on a small side-road, it fills-up early on weekends. There's room for only about 8 cars. Alternate parking is down the hill at the previous intersection. (The neighbors do not like your parking elsewhere along the private Rhus Ridge Road, only the official parking lot)

2. Quarry View!

From this area you can look down onto the large rock quarry to the east. By design, this quarry is not visible from down below, but is quite obvious when you're above it on this trail! (It's worth a look on a satellite map to understand the dimensions)

3. The Towering Towers!

Clearly visibly from distant locations in Silicon Valley and hovering behind the lower levels of Rancho San Antonio, the towers near the summit are quiet a site. They're accessible by vehicle, via Montebello Road to the southeast, but not for the general public.

4. The Rocky Summit

A little to the southwest of the towers you'll find the vaguely-defined summit area, with plenty of rocks to sit and enjoy the 360 degree view.