First official survey of Jefferson County township boundaries and sections.
Land grant deed documenting the original property boundaries and ownership.
Detailed field notes from the original county boundary survey.
Documentation of original survey monuments and witness trees.
First systematic survey of the township.
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Distribution of original land grants to settlers.
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Establishment of official county boundaries.
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Comprehensive recording of survey monuments.
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Introduction of aerial photogrammetry techniques.
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Implementation of standardized coordinate system.
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Establishment of primary triangulation network.
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Introduction of GPS technology into surveying.
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Establishment of land surveying standards.
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Beginning of electronic measurement techniques.
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Computer-Aided Design becomes standard.
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First satellite-based positioning systems.
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Introduction of laser scanning in surveying.
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Advent of GIS technology in spatial analysis.
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Creation of 3D models from terrain data.
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Integration of electronic measuring instruments.
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Full automation of total stations.
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Global Navigation Satellite Systems introduced.
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Advancements in high-accuracy maps.
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RTK GPS for real-time surveying.
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Widespread use of 3D laser scanning for documentation.
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