So, I had a question that I feel needs a little input; what would be considered the 'maximum livable angle?' By that, I mean how steep can land be before it becomes hard to build a dwelling or other structure on top of it? The reason for the inquiry is because a friend of mine asked me to do a map that involves building a village on top of mini-buttes that were carved from the land grand canyon style. I've seen maps like that on here before, but I started thinking about how steep land would have to be before people say, 'Nope. Not doing it.' As with all things, there are exceptions, but what would you all consider the maximum angle, in reference to the horizon, as a base line?