To most people, this means nothing more than a place to store water. However, some years ago I learned how to scooter tow in the field that was behind me here. David Broyles was my instructor, and I learned on a Mark IV. Even tho I didnt always agree with his teaching methods( I'm and instructor also, and who doesnt have a different opinion about things), he was able to sign me off in a day. I actually was able to soar for a little while over the top of this in a very weak thermal. Wonder how many people even know about a school here in Allen, only a few minutes from Big D.