Well, there are always crevasses. Every glacier has some, the more obvious the better, obviously. Nanatuks are the tops of hills which have resisted the ice and are poking up above it. Dunno if that's any relation to Bill's drumlins.

But rather than bore you with my definitions of what they are and aren't, here's a link which should tell you everything you would ever want to know:

http://www-nsidc.colorado.edu/glaciers/glossary/index.html


The idiot also known as Capfka ...