It was made by students from Hollywood High School. Hillside letters are common in the Western United States, consisting of large single letters, abbreviations, or messages emblazoned on hillsides, typically created and maintained by schools or towns. There are approximately 500 of these geoglyphs, ranging in size from a few feet to hundreds of feet tall, but the status of many of these symbols are uncertain, due to vagueness in sources. The earliest letter-building projects were devices for defusing increasingly violent inter-class rivalries, which college administrators and faculty found difficult to control.

The first Californian hillside letter built was a C in March 1905. It was constructed out of concrete and placed on Charter Hill overlooking the UC Berkele. The UC Berkeley classes of 1907 and 1908 proposed this project as a means of ending the unruly physical encounters that had become a part of their annual rush each spring. The idea caught on quickly, replicating the national fashion for jackets displaying varsity letters.

Sources: Hillside Letters in the Western Landscape, James J. Parsons, 1988; Peg Entwistle and the Hollywood Sign Suicide: A Biography, James Zeruk, Jr., 2013.