41. As the ice retreated, vast amounts of glacial till were deposited throughout the Puget Sound region. 42. Glacial till deposits of the Devonian age form part of the northern shore of the reservoir.43. Kames are also found in the kettle moraine area, and are mounds of compressed glacial till . 44. In its lower reaches, Big Run is on a glacial till known as the Wisconsinan Till. 45. The island is covered by large areas of glacial till , left behind when the ice melted. 46. They are created due to excess sediment and glacial till moved and deposited by the glacier. 47. This glacial till is typically more than thick. 48. As temperatures rose the glacier receding carving the island and leaving behind deposits of glacial till . 49. The gorge provides an unusual exposure of Maine North Woods bedrock typically covered by saturated glacial till . 50. The speed of erosion along the glacial till cliffs prohibits colonisation of anything but sparse ruderal vegetation.
