Mills Reservation County Park is a Park located in Cedar Grove, NJ 07009. It is one of the 9708 parks in United States. Address of Mills Reservation County Park is Normal Ave &, Reservoir Dr, Cedar Grove, NJ 07009, United States. Mills Reservation County Park can be contacted at 19732683500. Mills Reservation County Park is located in a remote area, with less than 1 listed places around it. Mills Reservation County Park is rated 4.5 (out of 5 stars) by 325 reviewers on the web.