42�24?55?N 71�09?25?W
Elevation ranges from 4 feet (1.2 m) above sea level (along Alewife Brook) to 377 feet (114.9 m) near Park Avenue and Eastern Avenue.
Arlington borders on the Mystic Lakes, Mystic River, and Alewife Brook. Within its borders are Spy Pond, the Arlington Reservoir, Mill Brook, and Hills Pond
