cliffs

Jeff, David, and Clair investigate the disappearance of a camper from Skull Cliff, but are not all that sure it was a case of kidnapping.

Provides information about cliffs, explaining what they are, how they form, and where they are located, and looks at the risks scientists take in their efforts to study and learn more about different types of cliffs.

Jeff, David, and Clair investigate the disappearance of a camper from Skull Cliff, but are not all that sure it was a case of kidnapping.