The Mid-Atlantic Dachshund Phest is famously known as the MADP. The MADP evolved from the original Virginia dachshund picnic called Bark in the Park. MADP began at the Algonkian Regional Park in Sterling, VA in 2002. After a very rainy MADP in 2003, the committee decided it was best to move the MADP indoors. We kicked off the 2004 MADP at the Prince William County Fairgrounds.