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
Variable Checkerspot
Euphydryas chalcedona
Nymphalidae
Brushfoots
Flies
March to July
Host Plant
Monkey Flower, Figwort, SNowberry, Plantain, Plectritis, Honeysuckle
Nectar Plant
Oregon sunshine
Michael Marchiano
Male
Underwing
Daniel Fitzgerald
