31. They thrive in glacial till from the Wisconsin glaciation. 32. A glacial till known as the Wisconsinan Flow-Till occurs in the valley of Laurel Run. 33. The resulting glacial till has produced a brown soil of stony fine sandy loam texture. 34. It is a band of high, hilly terrain made up of glacial till and sand. 35. Between the river and the plateau are flat prairies atop varying depths of glacial till . 36. The material of the outwash plans is glacial till . 37. The cave is a solutional cave formed in Visean Great Scar limestone from the glacial till . 38. The glacial till is generally decalcified to 3 4 metres; thinner strata may be entirely decalcified. 39. Some ridges in the vicinity of Wildcat Creek contain an irregular covering consisting of glacial till . 40. The lower layer of glacial till was deposited by the Cary substage of the Wisconsin glaciation.