Clinton County Geographic Information Systems Department
 


 

 

 

 

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County - Wide Two Foot Contour Project

Data Availability

Download with Google Earth

Data Review & Samples

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Data Availability

Data is currently available for download for users of AutoCAD or ArcView, or any software that can work with an AutoCAD drawing file.

The County-Wide 2-Foot contour data is now available by Township; click on the township you want and save that file to your computers hard-drive.

Click on the township in the map above or click on the township name below to download the 2 ft contours zipped file.

Township Name Size of Compressed Files Size of Decompressed Files Max. Elevation per Township
   Adams 226 MB    642 MB 1050
   Chester 234 MB    668 MB 1036
   Clark 129 MB    362 MB 1120
   Green 102 MB    281 MB 1194
   Jefferson 52.9 MB    147 MB 1020
   Liberty 97.5 MB    275 MB 1086
   Marion 46.7 MB    128 MB 1032
   Richland 66.8 MB    185 MB 1126
   Union 93.1 MB    266 MB 1098
   Vernon 210 MB   587 MB 1054
   Washington  157 MB    439 MB 1128
   Wayne 68.8 MB

   188 MB

1132
   Wilson 52.5 MB

   146 MB

1154

"Compressed Files" are zipped using WinZip to make the download size as small as possible.

The "Size of the Decompressed Files" is the size of the shapefile after it's been decompressed, or "unzipped".

Users of this (and all of our) data must provide their own file compression  / decompression software.

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You can use Google Earth as a front-end to download data in AutoCAD drawing file format by following the procedures below...

Look at the County-Wide Grid to Download ACAD drawing files in Google Earth

Click in the middle of  the Tile Name you want that covers the area your looking for...

A window will open up that is a folder on our server that contains the drawing file (example - A640530.dwg)

You can then download the dwg file to your computers hard drive for further processing or viewing.

The drawing files contain LIDAR points, Annotation, Breaklines, and Contour Lines. Click here for more information on LIDAR.

  -  Points which are elevation points, made up of Spot Elevations DTM which are from LIDAR, and Spot Elevations which are placed  through compilation.

  -  Annotation which is labeling of the Index contour lines and the spot elevation points.

  -  Polylines which consists of Breaklines, Contour Index lines, Contour Intermediate lines, Contour Intermediate Depression lines, and Spot Elevation lines. The    Spot Elevation lines are simply an "X" over top of the Spot Elevation point.

Please note the image below - on the left is the downloaded dwg file, on the right is the same area in Google Earth.

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Data Review & Sample Maps:

2 Foot Contour Project - Interesting Statistics - PDF Screenshot

Random Sampling for Review - PDF Screenshot

Screenshots of 3D Effect using Hill-Shading - Below: