The term "Silicon Valley" was coined by journalist Don Hoefler in 1971. He used it as the title of a series of articles "Silicon Valley USA" in a weekly trade newspaper Electronic News which started with the January 11, 1971 issue. "Valley" refers to the Santa Clara Valley, located at the southern end of San Francisco Bay, while "Silicon" refers to the high concentration of semiconductor and computer-related industries in the area. These and similar technology firms slowly replaced the orchards which gave the area its initial nickname, the "Valley of Heart's Delight".