Photo of entrenched area at Resaca...

This is an angle in the Confederate entrenchments along the line constructed by Hardee's Corps. The front of the trench is to your right - which overlooks Camp Creek valley.
This is the same photo but with the trench outlined for ease of viewing. The red lines denote the outer range of the entrenched area. The yellow lines help to visualize the depth of the trench. It is about 3 feet deep at the center in this location.