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Cliffs, Clay Mill, Iowa, late 1890s or early 1900s

Iowan till over Kansan gumbotil, soil on top of the gumbotil, Wayne Township, Iowa, July 8, 1924

Kansan gumbotil, soil, and Iowan till, Wayne Township, Iowa, July 8, 1924

Cliffs above the mill, Clay Mill, Iowa, late 1890s or early 1900s

Champion Quarries, Stone City, Iowa, late 1890s or early 1900s

Flat railroad cars in Champion Quarry, Stone City, Iowa, late 1890s or early 1900s

Favosites niagarensis, with stems of Amplexus associated with it, Monticello, Iowa, late 1890s or early 1900s

Oxford Mills on the Wapsipinicon River, Oxford Mills, Iowa, late 1890s or early 1900s

Quarry, Olin, Iowa, late 1890s or early 1900s

Topographies of the typical Iowa Drift Plain and the dissected Kansan Drift Plain, south of Waterloo and northwest of Oxford Junction, Iowa, late 1890s or early 1900s

Left bank of Wapsipinicon River, Hale, Iowa, late 1890s or early 1900s

Champion Quarry, Stone City, Iowa, October 19, 1895

Kansan gumbotil with Iowan till above, gumbotil line marked by cleared area and field bag, Wayne Township, Iowa, July 08, 1924

Cliffs, Clay Mill, Iowa, late 1890s or early 1900s

Core of till, mantled with loess, looking south across Anamosa, Wyoming Road, Anamosa, Iowa, July 8, 1924

Plat Book of Jones County, Iowa, 1893

Map of Monticello, Jones Co., Iowa, 1864

Iowa land survey map of t085n, r003w

Iowa land survey map of t085n, r001w

Iowa land survey map of t084n, r004w

Iowa land survey map of t083n, r002w

Iowa land survey map of t083n, r004w

Iowa land survey map of t083n, r003w

Iowa land survey map of t084n, r001w

Iowa land survey map of t086n, r004w

Iowa land survey map of t086n, r003w

Iowa land survey map of t084n, r003w

Iowa land survey map of t086n, r001w

Iowa land survey map of t086n, r002w

Iowa land survey map of t085n, r002w

Iowa land survey map of t083n, r001w

Iowa land survey map of t084n, r002w

Iowa land survey map of t085n, r004w

Jones County, Iowa, 1952, aerial photomosaic index

Jones County, Iowa, 1957, aerial photomosaic index

Jones County, Iowa, 1940, aerial photomosaic index

Jones County, Iowa, 1964, aerial photomosaic index

Jones County, Iowa, 1936, aerial photomosaic index

Jones County, Iowa, 1970, aerial photomosaic index

Jones County, Iowa, 1979, aerial photomosaic index

Plat Book of Jones County, Iowa, 1893

Plat Book of Jones County, Iowa, 1893

New Sectional Atlas of Jones County, Iowa, 1877

Wyoming, Iowa. MILW

Stone City, Iowa. MILW

Morley, Iowa. MILW

Anamosa, Iowa. MILW

Monticello, Iowa. MILW