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John Muir Birthday–Earth Day
- Apr 26, 2025 from 10:00am to 4:00pm PDT
- Location: John Muir National Historic Site, Martinez
- Description:
Celebrating John Muir’s 187th birthday, the 55th Anniversary of Earth Day and the National Park Service Centennial, plus the 70th Anniversary of the John Muir Association
Live music, historic re-enactments, dozens of exhibitors.
Admission and parking
- Created by: Sustainable Contra Costa