Salient means standing above or beyond the general surface or outline; jutting out; prominent among a number of objects.

While conducting the Alberta-British Columbia Boundary Commission survey in 1922, Arthur Oliver Wheeler [1860–1945] noted:

[T]he mass last named is that on which the triangulation station, entitled “Mons,” now “Salient S.”, is set at the extremity of its southern ridge. The basin in which this series of crossings of the watershed lies is a delightful park-like area, displaying wide tracts of open grasslands, interspersed with groves and scattering bunches of picturesque spruce trees, which gradually merge into dense bodies of forest growth as the open highlands slope downwards to the valley bottoms, through which wind the several larger streams. All through the open highlands little watercourses with crystal flows wander in many directions.