LotRO: Mines of Moria - Interview @ WarCry

WarCry has released the first part of an - with their own words - epic interview. The interviewed is Jeffrey Steefel who answers different questions among one which touches the geographical setting of Mines of Moria:

WarCry: It's interesting that in most open-world MMOs there's a focus on crossing landscapes, but [Moria] is one case where you'll have depth, too ...

Jeffrey Steefel: Vertical. Yeah, "vertical" is a word we're using a lot in the development of Moria. "Think vertical." Because you're right: ... The MMO-space sort of tends to be very conventional world, oddly, in terms of the terrain itself. So we're definitely thinking in three dimensions in Moria which will be part of the fun, I think, for the players; like "where am I?" ... We're having discussions like "What does the radar look like in Moria?" "What does the map look like?" Is it just a top down map of Moria, because we've got multiple layers? How are we going to display that? You can't make the map of Moria be exactly like the map of Bree-land, for example, because there's many, many levels; so what does that mean? It's interesting to kind of change your perspective the way it will become for players.