The Puente Hills Preserve hours are designed to protect the ecosystem, and sustain the balance between recreation and nature. Hellman, Sycamore, Hacienda Hills, Turnbull: 9am – 5 pm (October – April) 9am – 6pm (May – September) (Powder Canyon and Arroyo Pescadero hours are currently sunrise to sunset) Please be sure to click our Preserve & Trail Hours button for the current status of our trails. Why Are the Preserve Hours 9am – 5pm/6pm.? Short answer: Mainly to protect the natural resources Long answer: To Support the Habitat Authority’s Mission The Habitat Authority’s mission: The Puente Hills Habitat Preservation...
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