Great Nature 6 3, 11:34am

I live now on the edge of the American prairie, on an area scoured by glaciers for a million years (central Indiana). They stopped just south of here.

I previously lived in Illinois in a county with less than 30 meters elevation difference, lowest to highest.

I spent some time in northern Texas.

Southern Ontario, right against the lake where the glaciers were two miles thick.

And before that, Liverpool.

What is a "mountain"?