Walter Stein founded PaleoAdventures in 2005. And while this commercial venture can't boast a team of scientists, its dino digs are true fossil hunts. Family Travel Tips: PaleoAdventures offers one and two-day digs. The company's base in Belle Fourche, South Dakota is under an hour drive from Devil's Tower, Montana and the Black Hills area of South Dakota. The minimum age is 8, the recommended age is 12 and up. Participants are allowed to keep some common fossils.