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May 9, 2026
Saturday
Ridge-to-Ridge Challenge
- May 9, 2026 from 9:00am to 1:00pm PDT
- Location: Walnut Creek Open Space, Shell Ridge
- Description:
The Ridge-to-Ridge Challenge is an annual fundraiser supporting Sustainable Contra Costa and its youth program, Sustainable Leaders in Action (SLIA). Each year, high school and college students collaborate to raise awareness about climate issues and
- Created by: Sustainable Contra Costa
