Elks - Mountainside B.P.O. 1193 Us Highway 22, Mountainside, NJ07092 The Elks is a fraternal order with a network of more than 2,000 lodges in communities all over the country. The group…More gives scholarships and helps veterans and youths in its community. This lodge (1585) is located right on Route 22, in the front of the Mountainside Indoor Tennis Courts. Call for meeting times. Thousands of Elks give their time and money to help the ill, the elderly and homeless veterans.