A raft or skid on a narrow river. A team of men operate large oars to steer the boat. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
The face of a rock with sedementary rock, and a river in the background. The entire area is covered in sagebrush. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
A photograph of a page in a geology text book discussing caves and caverns. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
A cross section drawing of people exploring and excavating a cave. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
A roadside photo of a cliff created by a palisade of basalt columns, most likely in Southern Idaho. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
An etching depicting Ichthyosaurus, Pleasiosaurus and Pterodyctals. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
