- major snip -

> > I was having a thought about sources, too, but it isn't
> coherent yet, so
> >I'll let you know after I let it simmer for a while.

- - snip -

I have been thinking alot about these sources also. As they are something
untainted, i.e. natural, like a tree, a spring, a geyser. my thinking is
why not a lava flow? along this same thread then would all sources be
located above ground?