Where did all the goblins go?

[Rune Son of Bjarne]

I have a hard time beliveing that the orcs was completely killed off by Aragorn and his forces. . .It simply could not be done!

Middle-Earth is just to big, it is not like they where all gathered in one place and could be trapped. There was plenty of places to seek refuge and to hide and if a Balrog can hide for ages then surely small groups of orcs could have done the same.

I belive that the orcs was destroyed as a power, but not as a race. They would probably have been scattered into small groups seeking refuge in mountains and such and probably also migrating east.

I don't know how long they would survive, but I suppose they would be able to hide for a fair amount of time before dying by sword and because a lack of numbers. Kind of like the Petty-Dwarves.