Hm.. routeslip didnt work either. Eh well.
Guess they dont have elevation mapped out for Oklahoma.
Off to look for a good topographic map I guess!
The weird thing is I tried making maps from all sorts of different places in the US, and I couldnt get it to work at any of them. Yet, the one map that I visited about 30 minutes ago still has the elevation listed on its map. I dont get it.