Location: Los Angeles County, California

Named for the Throop Polytechnic Institute in Pasadena, founded in 1891 by Amos Gager Throop (1811-1894). Renamed the California Institute of Technology when it was reorganized (1920). Samuel V. Broadwell left a note, signed by himself and three witnesses, in the summit register naming this peak "Mount Throop after my alma mater, Throop, College of Technology" (1916). This was accepted by the USFS and the USGS.

However, an earlier name is still remembered by some. This summit and a neighbor had together once been called North Baldy Mountain. This summit was distinguished as the West Twin (C. F. Saunders, 1923). When East Twin was renamed Mount Baden Powell, there was some interest in designating this summit alone as North Baldy Mountain. The USFS thereupon reduced Throop to a subtitle and printed "North Baldy" on its maps (1926-54)--but the name failed to stick. Today, only Gudde persists in asserting that "North Baldy" is in current use.

Robinson notes another variant name no longer used: Mount Dougherty after A. A. "Doc" Dougherty of Coldbrook Camp.

Name first appears on USFS Angeles National Forest map (1925).

Peak was on the original 1946 HPS Peak List. Weldon Heald climbed this peak in 1935.