It is a court case that is studied because it has legal and historical importance.
Because there is a difficulty in quantifying, putting in numbers, the value of community and cooperative organizations. So the conclusion is simple: If you can not quantify you can not measure and if there is difficulty in quantifying, there is the same difficulty in measuring.
When varying greatly in size as a result of flooding or evaporation, this means that it has to be a body of water. The only body of water provided (Whose location is correct) is Great Salt Lake, Utah.