Cartography: Map Completion Percentage

[eMCeeScott]

So I am about to complete my first map, Serbule Hills (96.3% completed). I noticed that when I looked at my Map Exploration Stats the three dungeons that I have discovered so far (Anagoge Records Facility, Ranalon Den and Serbule Hills Spider Cave) are considerably less complete. For example, Serbule Hills Spider Cave is at 32.8%. I have went back to revisit that dungeon several times and I can't seem to find any other corridors to explore.

So I'm curious if there are other areas to explore and I'm just missing areas to explore or do the corridors themselves only cover about 1/3 of the map and my map completion will never be higher than 1/3?

Any insight would be appreciated. I'm not looking for an answer regarding "how to unlock" those hidden/secret areas if they exist, but rather if the remaining 2/3 of the map is explore-able or not. If it can be explored, I will continue to hunt and peck looking for a way to unlock them but I have a feeling my efforts of discovering this "secret" is actually futile.

Thanks

[Niph]

You can currently discover 100% of the open maps only. When a sufficiently large number of people will have discovered dungeons, percentages will be adjusted so that discovering all gives you 100% coverage, based on player data. We're just not at that step yet.