Special Presentation Kicks Off Seasonal Speaker Series Celebrate California Arbor Week by attending a special presentation by guest speakers Timmy Womick and Chad Brey of TreeCircus on Sunday, March 9, at 1 PM at the John Muir National Historic Site (NHS) in Martinez, CA. Womick and Brey’s hour-long program, “What Did John Muir Teach Us?”, is the first […]