The Lower East Side, sometimes abbreviated as LES, is a neighborhood in the southeastern part of the New York City borough of Manhattan, roughly located between the Bowery and the East River, and Canal Street and Houston Street. Traditionally an immigrant, working-class neighborhood, it began rapid gentrification in the mid-2000s, prompting The National Trust for Historic Preservation to place the neighborhood on their list of America's Most Endangered Places. It has become a home to upscale boutiques and trendy dining establishments along Clinton Street's restaurant row.