The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
Do you know main mountains and rivers in USA? This game will help you to learn the topographic map with puzzle way. In puzzle game,touch one mountain,river or others will display the full name and read the name.You need to drag it to its correct position . When you finish ,you will see a smile face. Map introduce part will give a preview about these. We suggest you may first review this part ,and then start your puzzle. Thanks for your attention and welcome to give us any suggestion.