Tile Index Maps
The index maps provide the tile numbers of the imagery and contours that are available for purchase.
A tile number label will appear as you zoom in on the map.
As of 2020 the ortho and contour tiles reference the same tile index.
All contour tiles will be delivered in DGN format. Shapefiles are available by request.
Note: The Tile Index Map only displays the contour index intervals. Delivered data will contain all 1-foot contours.
Please Note: The 1973 and 1988 aerial imagery were generated from scanned Mylar sheets.
The extent of the imagery is not coincident with the extent of the tiles along the edge of the acquisition areas.
This is also the case for the 2020 contours. Please zoom in to these border areas to verify the area of interest is included in the tile.