Talk:Chasm/@comment-4583259-20111123152058/@comment-4583259-20111125162018

Thank you Scooter8pie for the correction about patches of Dirt underground. I started finding them only when I made my map program display cross-sections. But I had already found some dirt at surface level. I have updated Geology to include them, and also talk about hills and the "fault lines" along the 128-block boundaries.