Heh... water witching was still used around here up until about 30 years ago, but it is almost sure to work, stick a pipe in anywhere in this part of Michigan and water will flow out. We got us a lot of water.
I grew up in northern Michigan and where my step dad built our house, we had our own well. But it was that damn iron water.
What's funny is that they tell us you should drink 8 cups of water per day. Our well water sucked and the only water I ever drank was from the school drinking fountain.