Promote the Boundary Line Adjustment for Expansion of Yosemite National Park

Target: California Senator Dianne Feinstein

Goal: Support the addition of 1,600 acres to Yosemite National Park

Yosemite National Park is a beautiful wilderness park, furnished with tumbling waterfalls and breathtaking views from atop tall granite cliffs. Located in the eastern central portion of California, Yosemite spans 1,200 square miles. However, future invasive development along the boundaries of Yosemite poses a threat to its serenity and natural beauty. Let the Senate know how important it is to conserve the park by adding 1,600 acres and safeguard it from encroaching development.

In 1864, Abraham Lincoln signed off on the Yosemite Grant, an act that successfully made the park the first of its kind consisting of land set aside only for protection and preservation. Then, 26 years later in 1890, the land was officially declared a national park. This national park is still teeming with biodiversity, from black bears to giant sequoias, as well as vast open meadows and deep valleys. However, it is clear now that even though this land is protected, the activities around the borders of Yosemite deeply affect the wildlife and forests within.

A recently introduced act has been brought to the attention of the House of Representatives and possesses bipartisan support. This act, called the Yosemite Expansion Act, is suggesting the inclusion of 1,600 acres into Yosemite National Park. The incorporation of more land along the western edge of Yosemite would add protection to the headwaters to the Merced River snaking through Yosemite Valley and preserve more precious land for the diverse species inhabiting this area of California.

Not only would this act prevent against the destruction of more land by developers, it would support a historical restoration. The land in question was set to be incorporated in the Yosemite Grant, yet political issues led to a different result. John Muir was the advocate and preservationist who successfully campaigned for the protection of Yosemite. His innovative visions that led to better environmental awareness throughout the entire area would be even more fulfilled with the addition of these 1,600 acres.

The boundary line adjustment must be passed by the Senate as well as the House–sign this petition and ask that a companion bill to the Yosemite Expansion Act be created and supported, first by the Senators of California. Yosemite National Park and the additional acres surrounding it should be protected for many years to come.


Dear California Senator  Dianne Feinstein,

The beauty and diversity of Yosemite National Park is unparalleled, consisting of endless gorgeous views looking down on gaping valleys as well meadows and forests filled with an array of animals and giant ancient trees. Since the late 1800’s, the land which Yosemite stretches out upon has been under protection and designated a national park in order to ensure its preservation.

We now have the opportunity to  extend the western border of this national park with the latest piece of legislation called the Yosemite Expansion Act. The construction and development that will inevitably take place on the outskirts of the western park boundary will have very negative effects on the entire Yosemite National Park. I urge you to consider the benefits of modifying this border, creating a companion bill to the Yosemite Expansion Act for Senate, and supporting the efforts of many environmental  organizations who know that protecting and expanding Yosemite National Park is crucial to its survival.


[Your Name Here]

Photo credit: Public Domain

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72 Signatures

  • Ana Maria Mainhardt Carpes
  • Darlene Roepke
  • Lynn Juozilaitis
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