 In 1906, Montvale added further land from Orvil and Washington townships, and in 1912, Montvale added territory from Upper Saddle River.On May 20, 1959, portions of Montvale were passed to River Vale, and on December 9 and 14, 1965, territories were exchanged between Montvale and Upper Saddle River.The borough's name is derived from its topography.