protect the Source

protect Our water

Time is running out for the Greater Yosemite Region. Policy changes threaten to unravel decades of conservation work, putting vital watersheds, wildlife habitats, and communities at risk.

Your emergency donation today will be DOUBLED through our matching gift challenge, creating twice the impact when Yosemite needs it most.

Explore tax-smart ways to support Tuolumne River Trust

Further our mission and your financial wellness with your gift to the Greater Yosemite Defense Fund.

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Charity badge with four stars, and a seal from The Giving List 2024, for Tuolumne River Preservation Trust, a four-star charity based in Sonora, California.