Mt. Diablo UU Church, Walnut Creek, CA By UUA Web Team By Mt. Diablo UU Church, Walnut Creek, CA October 26, 2017 Date: Passed: Sunday, September 7, 2008, 8:00 pm EDT Address 55 Eckley Lane Walnut Creek, CA 94596-6703 United States Map to 55 Eckley Lane