April 10, 2026
Mammoth Lakes Earth Day
Earth Day Celebrations
Celebrate the Earth and the natural beauty we experience every day here in the Eastern Sierra!
April 21, Tuesday, 3pm – 6pm
Cerro Coso Mammoth Campus, 101 College Parkway, Mammoth Lakes, CA
Join us for an afternoon of fun with upcycled arts and crafts, informational booths on sustainable living and more from local organizations and community partners!