Location: San Bernardino County, California

Named by USFS surveyor Don McLain for Joseph Grinnell (1877-1939), Professor of Zoology, Director of the Museum of Vertebrate Zoology at the University of California at Berkeley (1908-39), author, Sierra Club member and an early proponent of conservation measures. He made a study of birds and mammals in the San Gorgonio Mountain area (190506).

To the Aturaviatum Serrano Indians it was originally known as "Saka'piat".

The USGS and USFS once called it "Fish Creek Mountain".

Called"Mount Grinnel" on the original Peak List.

Name first appears on USFS Angeles National Forest East Div. map (1964)

Name officially accepted byu USBGN (1964).

Peak was on the original 1946 HPS Peak List. Weldon Heald climbed this peak in 1937.