Location: Los Angeles County, California

The origin of this name remains obscure. Pacifico is Spanish for "peaceful". One story is that Bob Waterman named it because he felt that the summit was as pleasant as this name would imply. On the other hand, Will Thrall contended that it was named by Tiburcio Vásquez (1835-75) who used Sheep Springs, on the west side of the mountain, as one of his hideouts. Neither story has ever been confirmed. It has also been suggested that whoever named it did so because the Pacific can sometimes be seen from here. This was the last peak Will Thrall ever climbed-he had his 80th Birthday party and climb here (1953).

Called "Mount Pacifico" on original HPS List.

Name first appears on USGS Tujunga quad (1900).

Peak was on the original 1946 HPS Peak List. Weldon Heald climbed this peak in 1940.