State Route 2 (SR 2) is a state highway in the U.S. state of California. Officially, it begins at the intersection of Centinela Avenue in the City of Los Angeles limits adjacent to the city of Santa Monica and extends all the way to SR 138 east of Wrightwood. The highway currently is divided into three segments, running briefly concurrent with U.S. Route 101 (US 101) and Interstate 210 (I-210) to connect the segments. The western section of the highway is an old routing of U.S. Route 66; the eastern portion is known as the Angeles Crest Highway.