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Pleistocene Fauna, fossil bones from southwestern Iowa, late 1890s or early 1900s

Bethany Limestone, Bethany, Mo., late 1890s or early 1900s

Pleistocene Fauna, horse teeth and superior molars, Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna, fossil horse teeth, superior grinders of Equus scotti found in Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna, mastodon jaw, ramus and symphysis of a Mammut americanum Kerr, molars 4-5-6, Pisgah, Iowa, late 1890s or early 1900s

Pleistocene Fauna, foot bones (metatarsals and phalanges) of fossil horse, Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna, mastodon jaw, ramus and symphysis of mastodon, Mammut americanum Kerr, molars 4-5-6, Pisgah, Iowa, late 1890s or early 1900s

Pleistocene Fauna, mandible of Mastodon americanus, viewed from above, worn 6th molars in place. (Note narrow spout and sockets for the tusks.), Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna, Elephas imperator, grinding surface of molar found in Peyton Pit, Pisgah, Iowa, late 1890s or early 1900s

Pleistocene Fauna, mastodon jaw, ramus and symphysis of mastodon, Mammut americanum Kerr, molars 4-5-6, Pisgah, Iowa, late 1890s or early 1900s

Pleistocene Fauna, Elephas imerator, side view of molar 5 (x 3/7), Peyton Pit, Pisgah, Iowa, late 1890s or early 1900s

Pleistocene Fauna, Mammut americanum, common Pleistocene mastodon, side view of 6th molar(2/3 natural size), Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna, large camel calcaneum, Cox Pit, Missouri Valley, Iowa, late 1890s or early 1900s

Pleistocene Fauna from elephants and fossil species 1) Elephas primigenius, 2) Elephas columbi, 3) Elephas imperator (about 2/7 natural size), Iowa, late 1890s or early 1900s

Pleistocene Fauna, fossil bones, Pisgah and Missouri Valley, Iowa, late 1890s or early 1900s

Iowa land survey map of t080n, r041w

Iowa land survey map of t078n, r044w

Iowa land survey map of t080n, r043w

Iowa land survey map of t080n, r042w

Iowa land survey map of t081n, r042w

Iowa land survey map of t078n, r046w

Iowa land survey map of t081n, r043w

Iowa land survey map of t081n, r041w

Iowa land survey map of t079n, r043w

Iowa land survey map of t079n, r045w

Iowa land survey map of t079n, r041w

Iowa land survey map of t079n, r042w

Iowa land survey map of t078n, r043w

Iowa land survey map of t079n, r045w

Iowa land survey map of t078n, r041w

Iowa land survey map of t078n, r042w

Iowa land survey map of t079n, r044w

Iowa land survey map of t078n, r045w

Iowa land survey map of t078n, r045w

Iowa land survey map of t080n, r044w

Iowa land survey map of t078n, r045w

Iowa land survey map of t080n, r045w

Iowa land survey map of t081n, r044w

Iowa land survey map of t081n, r045w

Iowa land survey map of t080n, r045w

Iowa land survey map of t081n, r045w

Iowa land survey map of t080n, r045w

Iowa land survey map of t080n, r045w

Iowa land survey map of t079n, r045w

Harrison County, Iowa, 1954, aerial photomosaic index

Harrison County, Iowa, 1939, aerial photomosaic index

Harrison County, Iowa, 1960, aerial photomosaic index

Harrison County, Iowa, 1949, aerial photomosaic index