Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Clement Junction, CA is a populated place located in Los Angeles County, California, at latitude 34º00'50" N and longitude 118º14'20" W, and appears as a named place on the U.S. Geological Survey Los Angeles 7.5' Topographical Quadrangle Map. The community derives its name from the major railroad junction situated there which was named for Canadian-born civil engineer and surveyor Lewis Metzler Clement, Chief Assistant Engineer and Superintendent of Track of the Central Pacific Railroad Company of California.