On a recent trip with my wife, we found ourselves in southern Missouri. The is the heart of the Ozarks with lots of lakes, rivers, and natural springs. One of the coolest springs we found was Big Springs. What an amazing place! Out of the way, few people, and well taken care of! If you're ever in the area, this is a must see! It flows anywhere from 140-854MILLION gallons of water a DAY! Amazing!