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The geology under the city. Frank Leverett and Frank B. Taylor, The Pleistocene of Indiana and Michigan and the History of the Great Lakes, U.S. Geological Survey Monograph 53 (1915) — the glacial frame of the Maumee plain. The Ball State and Purdue Fort Wayne archaeological survey reports: Cochran, Report of Investigations 004 (Fox Island, 1980); Cochran & Buehrig, ROI 015 (Wabash Moraine, 1985); White & McCullough, ROI 501 (2005) — the site-level record of what was found in the ground before development. Fleming and colleagues' 2018 Geological Society of America field guide chapter carries the modern reading of the same ground, and the Indiana Geological Survey's Allen County materials and Charles R. Dryer's 1888 work stand behind them.
What it proved here: the before-the-city leg's earth — the lake plain, the moraine, the carrying place's geology — is written from the survey literature rather than from the antiquarians, and the antiquarians (Robertson, above) are used only for what they saw standing, not for what they theorized.
Fed:
- The before-the-city and land legs.