Reminder: this is for Earth Science!

Just want to remind you guys that this is a forum for Earth Science class posts, not to discuss stuff you could do on AIM. For example if I asked you guys to post about a conversation on how geology affected the beverage industry we could talk about your findings here. Believe it or not, geology of a region effected the water that was drawn and therefore only certain types of spirits could be brewed from that area, can anyone find examples?