Our first Mystery Skype was with a class in Wisconsin! They gave us tricky clues, but we narrowed it down by their hint about cheese (and we thought it was cool we had that clue too)! In the end we had it down to California or Wisconsin, and our relief map helped us see that California has mountains while Wisconsin does not. One of the clues said they have hills but no mountains and are by a big body of water (which we discovered is Lake Michigan) and a very long river (must be the Mississippi!). We used maps in the classroom, Google Earth, and the Kid Rex search engine in our research today.
The other class guessed correctly that we are in Vermont. They said our clue about being in the Northeast by Canada really helped.
I think this will be a great way to explore maps and geography in general. Do you know anyone who might want to Skype with us? Let me know: firstname.lastname@example.org.