The points utilized on this GIS layer are computer generated, not surveyed. The layer shows points where scanned (PDF) images of tie cards are available for viewing. The points contained in this layer were generated by computer, and are, therefore, approximate. Consequently, the coordinates of the points themselves should not be used for legal surveying.
Surveyors still need to contact the County Surveyors’ Office when conducting research for surveying, to verify that the most up-to-date information was received. This layer does not contain all tie cards and will only be updated once or twice a year.
Although legal descriptions of Section corners are recorded in the County Surveyors’ office of all 92 counties of Indiana, this project currently contains information only from the following counties: Bartholomew, Jennings, Marion, Newton and Wayne.
The points on the map were computer generated and are NOT accurate locations of the corners. The points are only for the use of representing an approximate location so that the scanned tie card could be viewed in a GIS. The point locations should NOT be used for any type of legal surveying.
Updated data for Bartholomew County, Indiana were provided to IGS personnel on April 1, 2011, and were posted on May 23, 2011.
Contact County Surveyors’ office for verification of records, historical documentation, and any other information that pertain to this layer. Any errors in the information should be reported to the appropriate County Surveyors’ Office for correction.
The points were generated using software developed by Brian L. Wood, Paul I. Cripe Co. The section boundary layer (developed by the Indiana Geological Survey) was used as a basis for developing the uniformly spaced points within each section. Some digitized points were added to the point layer where irregular shaped sections occurred. This GIS layer containing points is to be used only as a link to view the scanned tie card. No coordinates associated with the points are to be used for the purposes of legal surveying.
Scanned images were created using the PLSS corner descriptions from the County Surveyors’ offices.
TieSheetNames, tie card naming-convention software created by Brian L. Wood, was used to rename the tie card images previously named with arbitrary file names with the statewide naming convention developed by the Geodetic Workgroup. The statewide naming convention was then used to link the tie card images with a corresponding point on the point layer by Lorraine Wright, IDEM.
Lorraine Wright worked with Bartholomew County (E.R. Gray III and Ray Sheldon) to develop the Tie Card Pilot Project and a “Cookbook” defining the process that other counties will use.
The SectionAttributes_TieSheetData.mdb table is imported into a new Access database named “HyperlinkSectionAttributesTieSheetData.mdb”. A new field, “Hyperlink,” is added to the table and populated by copying the FileName column into the Hyperlink column. Information is added in front of the attributes in the Hyperlink column that will direct the hyperlink to the appropriate folder where the scanned documents and the table reside.
Using ArcCatalog, a geodatabase is created and named “GDBHyperlinkedSectionAttributesTieSheetData.mdb.” HyperlinkSectionAttributesTieSheetData.mdb is imported into GDBHyperlinkedSectionAttributesTieSheetData.mdb.
ArcMap is used to join the GDBHyperlinkedSectionAttributesTieSheetData.mdb to the point shapefile (which provides the location information). The point layer (UTM, NAD 83, Zone 16) was created by Brian L. Wood using GIS software he developed. The linked data set is exported as a geodatabase for Internet access.