The Upper West Side is bounded on the south by 59th Street, Central Park to the east, and the Hudson River to the west. Its northern boundary is somewhat less obvious. Although it has historically been cited as 110th Street, which fixes the neighborhood alongside Central Park, it is now sometimes considered to be 125th Street, encompassing Morningside Heights. The area north of West 96th Street and east of Broadway is also identified as Manhattan Valley. The overlapping area west of Amsterdam Avenue to Riverside Park was once known as the Bloomingdale District.
From west to east, the avenues of the Upper West Side are Riverside Drive, West End Avenue (11th Avenue), Broadway, Amsterdam Avenue (10th Avenue), Columbus Avenue (9th Avenue), and Central Park West (8th Avenue). The 66-block stretch of Broadway forms the spine of the neighborhood and runs diagonally north/south across the other avenues at the south end of the neighborhood; above 72nd Street Broadway runs north parallel to the other avenues. Broadway enters the neighborhood at its juncture with Central Park West at Columbus Circle (59th Street), crosses Columbus Ave. at Lincoln Square (65th Street), crosses Amsterdam Ave. at Verdi Square (72nd Street), and then merges with West End Ave. at Straus Park (aka Bloomingdale Square, at 107th Street).
Morningside Heights, just west of Harlem, is the site of the Cathedral of Saint John the Divine, Columbia University, Barnard College, Bank Street College of Education, the National Council of Churches, Union Theological Seminary, Manhattan School of Music, Teachers College and Jewish Theological Seminary of America, as well as Grant's Tomb and Riverside Church.
Traditionally the neighborhood ranged from the former village of Harsenville, centered on the old Bloomingdale Road (now Broadway) and 65th Street, west to the railroad yards along the Hudson, then north to 110th Street, where the ground rises to Morningside Heights. With the building of Lincoln Center, its name, though perhaps not the reality, was stretched south to 58th Street. With the arrival of the corporate headquarters and expensive condos of the Time Warner Center at Columbus Circle, and the Riverside South apartment complex built by Donald Trump, the area from 58th Street to 65th Street is increasingly referred to as Lincoln Square by realtors who acknowledge a different tone and ambiance than that typically associated with the Upper West Side. This is a reversion to the neighborhood's historical name.