Eagle Rock Reservation is a 408.33 acre forest reserve and recreational park located primarily in West Orange, New Jersey and Montclair, New Jersey. The land is owned and adminstered by the Essex County, New Jersey Department of Parks, Recreation and Cultural Affairs.

On October 20, 2002, Essex County Executive James W. Treffinger along with a slew of local residents and dignitaries dedicated a section of the reservation to a memorial built in honor of those killed during the September 11 attack. The names of every local Essex County resident who were killed at the World Trade Center or on the two planes which crashed into the twin towers are permanently inscribed in a marble memorial.