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Fort Wayne Moraine : ウィキペディア英語版 | Fort Wayne Moraine The Fort Wayne Moraine is considered contemporary to the last stages of the Valparaiso Moraine. Centered on Fort Wayne, Indiana, the northern leg of the moraine is mostly overlaid by the younger Wabash Moraine angling northeastward through Williams County, Ohio. It only becomes identifiable in Lenawee County, Michigan south and northeast of Adrian before ending in the intermingling of moraines around Ann Arbor. The south and eastern leg of the moraine follows the northern bank of the St. Marys River into the State of Ohio. At the north bend of the St. Marys River, the moraine arcs northeastward through Lima, continuing in a northward arc to reach north of U.S. 30 in Hancock County to pass through Upper Sandusky, again bending to the north to end to to the northeast.〔Glacial Map of the United States East of the Rocky Mountains, U.S. Geological Survey, Department of the Interior〕 ==Description== Beginning northeast of Upper Sandusky in Wyandot, looping along the southern county boundary, entering Hardin County along its northern border with Hancock County. The moraine then runs, west of southwest to the moraine runs, southwest to Lima. From Lima it runs west and northwest along the right bank of the St. Mary's River to Ft. Wayne. Continuing northeast on the left bank of the St. Joseph River to Hudson, Michigan in Lenawee County.〔Report Upon The Geology of Allen County; Charles R. Dryer, M. D.; Indiana Geologic Survey, Indianapolis, Indiana, ca 1880 pg 124〕 The moraine is or wide and has an undulating surface. Its main crest is to above the beds of the rivers that follow the outer border. The rivers are in trenches to deep. The moraine is to above the bluff or plain. The wide outer slope of a mile (1.6 km) or more provides any local relief. The drift is a clay till and has boulders.〔The Pleistocene of Indiana and Michigan and the History of the Great Lakes, Monograph 53; Frank Leverett & Frank B. Taylor, U.S. Geological Survey; Government Printing Office, Washington; 1915, pg 168〕
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