Travelers are voting Goffle Hill, Preakness Range and Watchung Mountains as the best of 23 mountain ranges in Union County. There are 37 mountain ranges near Montvale a city just 30 km from Union County and 52 mountain ranges near Hackettstown which is 30 km distant. The most popular of these are Wawayanda Mountain near Montvale and Mount Tammany in Hackettstown. You can find 58 mountain ranges in New Jersey and 5140 mountain ranges in the country of United States. Our members favorite in New Jersey is Schooleys Mountain and Mount McKinley is the top pick in United States. Want more? Check out our map of mountain ranges in Union County.