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Building a New Authoritative GIS Boundary File for Indiana

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Presentation on theme: "Building a New Authoritative GIS Boundary File for Indiana"— Presentation transcript:

1 Building a New Authoritative GIS Boundary File for Indiana
Wayne County, IN 2013 Indiana GIS Conference Shaun N. Scholer, GISP GIS Manager, Wayne County/City of Richmond GIS Interlocal 401 E Main St. Richmond , IN Office: Cell:

2 Factors Identifying the Boundary of Wayne County
Historic Legal Description Indian Treaty Lines State Line Spanning Multiple Baselines. 2013 Indiana GIS Conference Slide 2

3 History of the Wayne County Boundary
2013 Indiana GIS Conference Slide 2

4 Interpreting the Legal Description
Indiana Revised Statute of 1852 Generalized the county boundary Vague descriptions of some corners Call/bearing missing 2013 Indiana GIS Conference Slide 4

5 Defining Corners from Legal Description
2013 Indiana GIS Conference Slide 2

6 Indian Treaty Lines Greenville Treaty Line - The Treaty was signed at Fort Greenville on August 3, 1795 following the Native American loss at the Battle of Fallen Timbers the previous year. Harrison or 12 mile Treaty Line - In 1809 Governor Harrison signed a treaty with the Indians which opened for settlement a 12-mile strip, paralleling the Greenville boundary line. 2013 Indiana GIS Conference Slide 6

7 Treaty Lines Greenville Treaty Line 12 Mile Treaty Line
2013 Indiana GIS Conference Slide 2

8 Greenville Treaty Line
Impact to the County Boundary Randolph County Greenville Treaty Line Wayne County Randolph County Wayne County Harrison Treaty Line 2013 Indiana GIS Conference Slide 8

9 2013 Indiana GIS Conference
Slide 9

10 Section Corner Accuracy
Point Quality # High Quality Field Location (125) Calculated - interpreted between points (0) Ortho-photo interpretation (48) Location plotted to unknown accuracy (0) 2013 Indiana GIS Conference Slide 5

11 Local GPS Base Station vs. InCORS Network
2013 Indiana GIS Conference Slide 11

12 Future GIS Work related to Updated County Boundary
Create new County Boundary polygon Share with the State our updated County Boundary Update various GIS layers affected by new section corner locations Continue to work with neighboring counties to update our closing corners between their closing corners. 2013 Indiana GIS Conference Slide 12


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