Council of Elrond

The playability of a drake with Wyrmsiege depends on region symbols or region names too?
Example:
Can I play a Sand-Drake with Wyrmsiege @ Gobel Mirlond?
or
Can I play a cave worm @ Bree (minion version) because that site's site pathe is Angmar and Arthedain and the cave worm is playable in Angmar?
a.s.o

Please help my lack of knowledge

Cheers,
Heiko

Wyrmsiege writes:

Playable on a Border-hold or Free-hold (not in a Free-domain). Place a non-unique Drake creature from hand with this card; the creature must be able to attack in regions in the site's site path or in the region containing the site.

In the site's site path no regions are mentioned by name, so you can only use drakes that are keyable to region types, or to the region name as mentioned on the site card. So you can use Cave Worm with Wyrmsiege on Blue Mountain Dwarfhold, or even Amon Lind (any mountain region), but not on minion Bree. Just use Marsh-drake