John Muir Project Claim Listing Return to Directory Rating (average) (0) Business Genre Association, Civic Business Website Address johnmuirproject.org Business Address, City , Grass Valley ZIP Code 95945 Business Phone Number 5302739290 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password? Reader Interactions Leave a Reply Cancel replyYou must be logged in to post a comment.