Mount EFI system partition at directory

I already know that mountvol <Drive Letter>: /S will mount the computer's EFI system partition—how it knows which one is the one that was used to boot the computer, I have no idea—at <Drive Letter>:. But how do I mount it at a directory such as C:\ESP?

Through mountvol <path> <VolumeName>, I have already configured my laptop's recovery and restore partitions to be mounted at my preferred paths, but I can't do this with the EFI system partition because I don't know what it's volume GUID is.