Description: This North American Datum 1983 (NAD 83) version of the Illinois multi-zone, discontinuous coverage projection layer is a product resulting from the Low Distortion Projection Report prepared for Illinois Department of Transportation District Eight (PTB 152-029, Job No. P-98-003-09, Work Order 13, issued April 13, 2016). Due to the request for the improved grid to ground accuracy this layer is being published and released in North American Datum 1983 (NAD 83) and is named ICS83: 9 Zone.
Copyright Text: State of Illinois, Illinois Department of Transportation (IDOT), Illinois State Geological Survey (ISGS)
Description: This North American Datum 1983 (NAD 83) version of the Illinois multi-zone, discontinuous coverage projection layer is a product resulting from the Low Distortion Projection Report prepared for Illinois Department of Transportation District Eight (PTB 152-029, Job No. P-98-003-09, Work Order 13, issued April 13, 2016). Due to the request for the improved grid to ground accuracy this layer is being published and released in North American Datum 1983 (NAD 83) and is named ICS83: 9 Zone.
Copyright Text: State of Illinois, Illinois Department of Transportation (IDOT), Illinois State Geological Survey (ISGS)