more west/southwest, but close enough =)
The linear nature of the game dictates that there are a limited number of places you can go at any one time. So if you explore enough you'll always find where you need to be. If you go through one dungeon, complete it and the story doesn't progress look on the map for other nearby dungeons that you haven't explored. This is especially the case when you find a key item in a dungeon. Usually that implies that you're done there(at least for the moment) and you need to find somewhere new to go. It doesn't hurt to leave and have to come back if you were wrong, because you need to keep up a steady flow of exp anyways.