Mill Valley Parks and Recreation Mill Valley parks and recreation department of Mill Valley gives a list of all the outdoor activities the city has to offer, as well as a list of programs one can attend. Lists all the parks and public notices of the city. Website: www.cityofmillvalley.org/Index.aspx?page=69Email: parks@cityofmillvalley.orgPhone: 415 383-1370Mailing Address:180 Camino AltoMill Valley, CA 94941Date Updated: 12/6/2012