Swallowtails
Anise Swallowtail
Papilio zelicaon
California Pipevine Swallowtail
Battus philenor
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Pale Swallowtail
Papilio eurymedon
Two-tailed Swallowtail
Papilio multicaudatus
Western Tiger Swallowtail
Papilio rutulus
Park Alerts [updated on 04/27/21]​​​​​​
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The Summit and Mitchell Canyon Visitor Centers are open with limited hours and capacity.
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All park visitors must distance themselves from others by the required 6 feet. Stay Safe.
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Water Shortage: All visitors are encouraged to bring water for consumption during their visit. Plan Ahead.
Take a Multimedia Tour of Mount Diablo
PRESERVATION THROUGH EDUCATION
