The video Current Ripples explains how to recognize ripples on a bedding plane surface. Narrated by Dr. Bill Neal.

This video will show you what to look for in describing a stratigraphic section, this one particularly at Grand Ledge station 1. Narrated by Dr. Bill Neal.

This video will show you how to approach measuring and describing a stratigraphic section. It will describe how to go about measuring each unit from Grand Ledge station 1 using a tape measure: sandstone 1, a coalbed, and sandstone 2. Narrated by Dr. Bill Neal.

Stratigraphic Section Measuring

From Station 4.

This video is about actually measuring and describing stratigraphic sections using a measuring pole at station 4. Narrated by Dr. Neal.

Explanation of Cross Beds

From Station 4.

A general explanation of the nature and formation of cross beds narrated by Dr. Ginny Peterson at Grand Ledge station 4.

Cross Beds From Station 5.

Channel sandstone cross beds in the Grand River Formation. Dr. Neal describes the nature and context of the cross beds found at station 5.