The precise meaning of the name Tehachapi Pass is often a source of confusion. Technically (i.e., as noted on USGS topographic maps), the name refers to the narrowest part of the canyon on the eastern approach to the summit (as at San Gorgonio Pass), where the elevation is about . The actual high point is just east of the town of Tehachapi, at an elevation (on the railroad) of . The highway sign refers to this location as Tehachapi Summit. However, the term Tehachapi Pass is routinely used to refer to both this location and the approaches on either side.