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The ALRIS layer was tablet digitized from USGS 7.5 minute topographic quadrangle paper maps.\nIn 1992, a database of Section corner locations was acquired from ADOT, and the TRS layer was adjusted to match those ADOT Section corners that were surveyed to an acceptable level.\nIn 2010, the Section boundaries were adjusted to Section corner locations from the GIS parcel AutoCAD drawings.\nSpatial Domain: Pima County\nRectified: parcel\nMaintenance Format: Coverage\nPrimary Source Organization: ALRIS\nPrimary Source Date: 1988\nPrimary Source Scale: 24000\nPrimary Source Format: Coverage\nSecondary Source Organization: Pima County DOT\nSecondary Source Contact: Steve Whitney\nSecondary Source Date: 1992\nSecondary Source Format: Database\nGIS Contact: Steve Whitney\n\nMapGuide Layer Name: Section Grid\nMapGuide Scale Range: 0 - 100000", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 2868, "latestWkid": 2868, "xyTolerance": 0.0032808398950131233, "zTolerance": 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