In a historic effort to protect one of the largest expanses of open land in the region, the 2,445-acre Tres Hermanos Ranch in Chino Hills and Diamond Bar is now under the ownership of the Tres Hermanos Conservation Authority (February 2019).
Starting in January 2025, the Tres Hermanos Conservation Authority Board of Directors will meet in the City of Industry Council… Read More
The Tres Hermanos Conservation Authority Board has a free subscription service that allows interested individuals to receive email or text… Read More
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