I'm trying to create a simple mountain with proportional editing, and I'm finding that it's creating unusual faces around the edges of the surface. What I was hoping to do was to create a bell curve-like surface that is smooth around the entire surface. However, what's actually happening, is it's becoming almost like an umbrella:
What rule does this follow, and is there a setting that can be changed to create more faces (almost like a subdivision, except on the proportional editing)?
I did use the Connected proportional editing mode, mainly because if I use Projected it comes up with a different kind of shape based on the projection of the camera (which seems fitting).