Fig. 3. Southeast of McLean is a tributary valley of Fall Creek, which heads in 
Cortland county. This view looks along the axis of this tributary valley, showing 
its flattened cross-section as well as the maturity of the major valley. 
Fig. 4. Looking east across the Owasco valley at Locke; camera stands near 
the i200-foot contour. Valley drift shows on both slopes. 
