National Park Service to celebrate another anniversary – the Wilderness Act

Yosemite National Park will celebrate the 50th anniversary of the Wilderness Act on Wednesday, September 3. It created the legal definition of wilderness and protects over 9 million acres.

It was signed by Lyndon Johnson on Sept 3, 1964. The full name is “Wilderness Preservation System for the permanent good of the whole people, and for other purposes.

Here’s how the Feds define wilderness:

“A wilderness, in contrast with those areas where man and his own works dominate the landscape, is herebyrecognized as an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain.”

At Yosemite, the QUOTE Wilderness UNQUOTE begins 400’ above the valley floor. Half Dome was designated Wilderness in 1984. Odd, in that you can see the parking lot from the top and 40,000 people go up it annually.

Unrelated thought worth quoting: “The clearest way into the Universe is through a forest wilderness.” – John Muir

MrHalfDome™ – Rick Deutsch –

One Best Hike: Yosemite’s Half Dome

About Mr Half Dome - Rick Deutsch

Mr Half Dome. Has written the only half dome hiking guide, One Best Hike: Yosemite's Half Dome. Has hiked it 31 times to day. Lives in San Jose, CA Available for presentations. Carpe Diem Experience, LLC
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2 Responses to National Park Service to celebrate another anniversary – the Wilderness Act

  1. Maureen L says:

    Thanks for the post commemorating the 50th Anniversary of the Wilderness Act.

    The wilderness boundaries in YNP are a bit more complicated. Land close to the Tioga Road and the Glacier Point Road aren’t wilderness, either. It’s always a delight to hit that sign 1/4 mile in from the Tioga Road “Entering Yosemite Wilderness.” There’s a nice map here:

    If you want a T shirt with the logo, search for “wilderness50th.”

    • Interesting…but if roughly 4,400 ft ASL marks the “wilderness” area….all the backcountry – Tuolumne / Tioga is above that. Hmmm Also, Wilderness cannot be within 100 ft of any trail or road. So that needs to be accounted for.

      I noticed that the page talks a out HD permits…and refers to the National Recreation Reservation Service – but the link takes you to There it doesn’t mention National Recreation Reservation Service.

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