Show Ohio Limestone Cavern Has Puzzling Formation The Blue Hole of ot Castalla Castalia Ohio is somewhat of a puzzle to scientists This Interesting natural phenomenon non is located in a lime one lone region and limestone areas are always marked with water-made water caverns subterranean streams and similar peculiarities The Blue Hole is a place where such a subterranean stream springs suddenly to the surface surface sur sur- face tace and runs for the remainder of Its course above ground The sources of 01 the streams In this area are in land which to the south of Castalla Castalia has an elevation of ot feet teet and more above sea level The elevation at the Blue Hole is feet teet that of ot Lake Erie is feet The stream which issues from the Blue Hole and descends so rapidly to the lake three miles a away way is called Cold creek In its natural channel says Henry Howe Howe's Ohio History this creek ran through a place of prairie covering several hundred acres Into a quagmire and muskrat garden It now runs nearly nearly near ly Its whole length through an arti artt- artificial tid al channel The constituents of the water are lime soda oda magnesia and iron and it 1 petrifies all aU objects as 81 grass stumps moss etc which come in contact with it The water is very cold but never freezes and at its point of entrance to the lake prevents pre vents the formation there of ice it maintains nearly the same temperature tempera temperature ture summer and winter |