A sunset shot from La Jolla, California at Hospitals Reef. This place at low tide due to all the exposed sand stone potholes everywhere. Its a must at low tide or if you are visiting southern California.The term pothole is also used to refer to other types of depressions and basins that differ in origin.For example, some authors refer to panholes found in the Colorado Plateau also as potholes.
The Earth scientists, who study rivers and streams, define a pothole as a smooth, bowl-shaped or cylindrical hollow, generally deeper than wide, found carved into the rocky bed of a watercourse. Other names used for riverine potholes are pot, (stream) kettle, giant’s kettle, evorsion, hollow, rock mill, churn hole, eddy mill, and kolk.