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2004 Marion County Orthophotography

500x150 pixels, align rightDownload

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Dataset Basics


Marion County 2004 color ortho imagery was provided by the Indianapolis Mapping and Geographic Infrastructure System. The archive includes 165 GB of original-resolution TIFF images and 5.7 GB of MrSID mosaics.

File Format


Original-resolution images are available in TIFF format.  You will need to build pyramids and set the spatial reference for all tiff files.  MrSID mosaics are available for Marion County, the nine townships, and the IUPUI campus.

Coordinate System:  IN State Plane East, Zone 1301 Horizontal Datum:  NAD83 
Pixel Resolution:  0.5 foot, International Survey Feet 
Scale:  1:9600 NCS (Negative Contact Scale) 
File Format:  TIFF (100MB) 
File Format:  MrSID township mosaic (400-600MB); county mosaic (550MB)
File Format: MrSID IUPUI campus (lossless, 20:1, 40:1 and 60:1 compression)