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Station contact Information

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Breezy Jackson, Yosemite & Sequoia Field Stations Director
Yosemite Field Station Cell: 209-628-5758
Yosemite Field Station Office: 209-375-9917
Fax: 209-375-9918

Marlon Spinneberg, Maintenance Steward
Cell: 209-626-6895

USPS mailing address
UC Merced Yosemite Field Station
P.O. Box 2117
Wawona, CA 95389

UPS/Fedex shipping address
UC Merced Yosemite Field Station
7799 Chilnualna Falls Road
Wawona, CA 95389

Current Conditions

Updated July 17, 2023

Yosemite and Sequoia Field Stations are open. You can check real time air quality at For information about road closures and current conditions check the Yosemite National Park and Sequoia-Kings Canyon National Parks websites.