You searched for: Author Otterstrom, Samuel Remove constraint Author: Otterstrom, Samuel Author Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. Remove constraint Author: Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. Format Shapefile Remove constraint Format: Shapefile Publisher Geoscience Publications Remove constraint Publisher: Geoscience Publications Subject Boundaries Remove constraint Subject: Boundaries Subject Counties Remove constraint Subject: Counties Place United States Remove constraint Place: United States Data type Polygon Remove constraint Data type: Polygon Year 1840 Remove constraint Year: 1840