![]() ![]() The survey was carried out in a systematic manner, with survey posts set every half mile along a grid of one mile square blocks of land called sections. We present an overview of the database and results from several applications.Ä«etween 18, contractors to the United States government surveyed the largely unsettled lands of what today constitute the State of Wisconsin for the purpose of subdividing and selling land to settlers moving west from the eastern states and from Europe. The data is related to a GIS coverage of survey points for mapping and spatial analysis. We extracted ecological information from the notebooks and compiled a statewide tabular database of Wisconsin's presettlement vegetation. Their notebooks represent an invaluable source of information regarding the pre-European landscape. As they proceded, surveyors noted the location and size of witness trees near each survey post and vegetative information for each mile surveyed. The US General Land Office surveyed the country's unsettled territories between 17 to subdivide the land for sale. A Pre-European Settlement Vegetation Database for Wisconsin
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