The law creating state parks in Iowa specifically provides for the preservation of areas of historic or scientific interest, or possessing scenic beauty, and not alone for recreation purposes. It was never contemplated or expected that any one of the state parks would meet all of the requirements indicated, but that each purpose would be served by some, or parts of some of the areas selected. There is a growing tendency to regard both our national and state parks as mere recreation or picnic grounds, and their value is being measured in many quarters merely by the numbers of visitors
