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Sentinel of Silicon Valley: The Radar Tower at Mount Umunhum is Saved

Sentinel of Silicon Valley: The Radar Tower at Mount Umunhum is Saved

Vista Point: The Heavens Above San Francisco Bay

Vista Point: The Heavens Above San Francisco Bay

A Very Small Big Deal: How the Integrated Circuit Made Silicon Valley

A Very Small Big Deal: How the Integrated Circuit Made Silicon Valley

Moffett Field’s Hangar One Goes from Navy’s Dirigibles to Google’s Robots

Moffett Field’s Hangar One Goes from Navy’s Dirigibles to Google’s Robots

Highway 35: Alice in Skylonda Land

Highway 35: Alice in Skylonda Land

San Andreas and the Linear Lakes of California’s I-280

San Andreas and the Linear Lakes of California’s I-280

The Pulgas Water Temple and the Hetch Hetchy Water System

The Pulgas Water Temple and the Hetch Hetchy Water System

Latest News

  • Sentinel of Silicon Valley: The Radar Tower at ...

    2016/05/19
    by Garrick Ramirez
  • Vista Point: The Heavens Above San Francisco Ba...

    2016/04/04
    by Skyline Historical Society
  • A Very Small Big Deal: How the Integrated Circu...

    2016/03/10
    by Garrick Ramirez
  • Moffett Field’s Hangar One Goes from Navy’...

    2016/02/25
    by Ranger Gaudinski
  • Highway 35: Alice in Skylonda Land

    2015/11/02
    by Skyline Historical Society
  • San Andreas and the Linear Lakes of California&...

    2015/08/27
    by Ranger Gaudinski
  • The Pulgas Water Temple and the Hetch Hetchy Wa...

    2015/04/19
    by Ranger Gaudinski

Sentinel of Silicon Valley: The Radar Tower at Mount Umunhum is Saved

Posted by Garrick Ramirez
|May 19, 2016
|in : Blog, California, History, Silicon Valley
| (16) Comments
|24333 Views
Sentinel of Silicon Valley: The Radar Tower at Mount Umunhum is Saved
It was a clandestine military post, a mysterious mountain tower, and a secret control room filled with the blips and bleeps of sci fi-worthy technology. During the Cold W...
Read more

Vista Point: The Heavens Above San Francisco Bay

Posted by Skyline Historical Society
|April 04, 2016
|in : Blog, California, History, Silicon Valley, South Skyline Boulvard
| (1) Comment
|6419 Views
Vista Point: The Heavens Above San Francisco Bay
The vista point parking area along Highway 35 sports a spectacular view. It’s about 8.5 miles south of Highway 84 and depending on the smog level or cloud layer, yo...
Read more

A Very Small Big Deal: How the Integrated Circuit Made Silicon Valley

Posted by Garrick Ramirez
|March 10, 2016
|in : Blog, California, History, Silicon Valley
| (1) Comment
|15047 Views
A Very Small Big Deal: How the Integrated Circuit Made Silicon Valley
The integrated circuit might not inspire the same level of excitement as other tech breakthroughs, such as Facebook or the iPhone, but the impact of its invention was jus...
Read more

Moffett Field’s Hangar One Goes from Navy’s Dirigibles to Google’s Robots

Posted by Ranger Gaudinski
|February 25, 2016
|in : Blog, California, History, Popular, Silicon Valley, TempPopHomePage
| (23) Comments
|31279 Views
Moffett Field’s Hangar One Goes from Navy’s Dirigibles to Google’s Robots
Looking out over Silicon Valley, the airstrips of Moffett Field and its three gigantic hangars are a defining feature. The airfield is a bastion of open space surrounded...
Read more

Highway 35: Alice in Skylonda Land

Posted by Skyline Historical Society
|November 02, 2015
|in : Blog, History, Silicon Valley, South Skyline Boulvard
| (14) Comments
|42034 Views
Highway 35: Alice in Skylonda Land
The community of Skylonda is a hidden treasure amongst the winding curves and dense redwood forests of La Honda Road and Highway 35. The locally renowned Alice’s Re...
Read more

San Andreas and the Linear Lakes of California’s I-280

Posted by Ranger Gaudinski
|August 27, 2015
|in : Aerial Video, Blog, California, Highway 280, Silicon Valley
| 0 comments
|17526 Views
San Andreas and the Linear Lakes of California’s I-280
The 7.44 million people of the San Francisco Bay Area live surrounded by several large faults within the active San Andreas Fault System. Most of us who live here are ver...
Read more

The Pulgas Water Temple and the Hetch Hetchy Water System

Posted by Ranger Gaudinski
|April 19, 2015
|in : Blog, California, Highway 280, History, San Francisco, Silicon Valley, TempPopHomePage
| (2) Comments
|19451 Views
The Pulgas Water Temple and the Hetch Hetchy Water System
The Pulgas Water Temple sits in striking contrast to the coastal oak woodland that surrounds it in Redwood City, California. A huge stone structure, it’s majestic and ver...
Read more

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Most Popular Posts

  • Marianne’s Ice Cream: Santa Cruz Locals’ Flavorite
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Highway 35/ Skyline Boulevard

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  • Vista Point: The Heavens Above San Francisco Bay
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San Francisco

  • Why is the Golden Gate Bridge Orange?
  • The Pulgas Water Temple and the Hetch Hetchy Water System
  • Why MLK Came to the San Francisco Bay Area in 1964
  • The Accidental Discovery of San Francisco Bay
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About Mobile Ranger

We provide you with inspiring stories and fun information about the natural and human history of interesting places. It's like having a park ranger with you.

Our one-of-a-kind self-guided mobile tours and blog posts help you connect to a place, either outside, at the site, or from your living room.

Download our apps about the Santa Cruz coast or read our blog posts about Santa Cruz, greater California, and beyond.

Local Knowledge and Passion

We work with historians, naturalists, and organizations whose experts know and love particular places. We use their deep knowledge to create great stories that bring their favorite places alive for you.

Do you or an organization you work or volunteer for have photos and high-quality natural or human history information about your local place? If you want to get it into an app and up on the web, contact Chief Ranger Julia Gaudinski: julia@mobileranger.com
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