There is obviously a potential to go down a huge rabbit hole here with the various sources of introduced error (horizontal accuracy of imported NRCAN peaks, vertical accuracy of queried elevation data).   I would suggest that consumer grade handheld GPS on a mountain summit will probably produce vertical errors within the same order of magnitude as the queried dataset. Don't even get me started on measured peak elevations vs what's written on the signpost or local guidebook!
But DENelson83's work here stands not as an authoritative source, but as a good starting point for otherwise unmapped information. Much like the NRCAN imports in general, which has been discussed at great length. 