Indiana Spatial Data Portal

Dataset Basics

The City of Bloomington's Information and Technology Services Department (ITS) provided the Indiana Spatial Data Portal with the City of Bloomington's 1998 orthophotography. The City's vendor, Atlantic Technologies, Ltd., acquired these 6-inch resolution black-and-white orthophotos April 6, 1998. The spatial extent of this dataset covers the Bloomington municipal area. Additional base map layers are available for download from the City of Bloomington.

Available Datasets

File Format

This archive includes 458 individual digital orthophoto images in TIF and MrSID MG2 formats (*.sid), and a mosaic of all images in MrSID MG2 format. The images are based on an arbitrary 3000' by 2000' grid system. All images are in zip archives. A metadata zip archive includes a footprint index of the images in shapefile format and an html file with all metadata information. The MrSID archives include metadata files documenting the compression process. 

Coordinate System:  IN State Plane West, Zone 1302 
Units of Measure:  Feet 
Horizontal Datum:  NAD83 
Spheroid:  GRS80 
Pixel resolution:  0.5 foot 
Horizontal positional accuracy is +/- 2.5 feet 
File Type: TIFF (23MB/file) 
File Type: MrSID (0.5-3MB/file)