ABSTRACT
A lake (see Figure 9.1) is generally taken to be a body of water surrounded by land, but with a free surface (open to the atmosphere). But, what is a lake, versus a reservoir, or versus a pond? Or, for that matter, what is a lake versus a wetland or a river? If a river flows into a reservoir, where does the river end and the reservoir begin? And, does this matter from a regulatory perspective? Or from an ecological perspective? How about if you wanted to name waterbodies or complete a survey of them, how would you determine which is which?
