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Plat Maps of Miami & Erie
and Ohio & Erie Canals

 Sample plat map as a series of enlarged images.
Another sample: Close up of a lock at Delphos.

Download Options
Choose Maps by Canal Corridor or a Statewide Map.

Miami & Erie Canal Corridor
survey plat maps by county*		     Ohio & Erie Canal Corridor
survey plat maps by county*
   
OR
 		  
State Map of Both Canal Corridor Plat Maps*
(Clicking on a county will display a list of plats in that county.)

*NOTE: Plats from each corridor page are zipped and must be downloaded
and unzipped before viewing. Plats from the State Map page
are available as zipped or unzipped tiff images.

*About the Plat Map Image Files

  These Zipped files contain CCITT Group 4 compressed Tagged Image File Format (TIFF or .tif) images of the original plat map drawings of the Ohio & Erie, and Miami & Erie Canals as surveyed from approximately 1890 to 1915.

Plat Map Image File Size, Format, and Image Viewers

  The files consist of black & white, one bit, 400 x 400 dpi, compressed TIFF files. The compression method used is CCITT Group 4. File sizes of compressed images range from around 94k to 650k. Expanded file sizes range from 16.4 to 23 megabytes. Physical size of each drawing, if printed at 100%, is approximately 29 x 41 inches; some are smaller.

  To view these images you will need a raster image viewer that supports the CCITT Group 4 compression method. Below is a table of known applications that can decompress, view, and print these files.

PC Platform

Mac

Arcview

Image (Windows 95B and later)

Photo Editor (MS Office Suite 97)

Arcview

Apple PictureViewer 4.1 with Quicktime 5.0.1 installed.

GraphicConverter (2.1.5 or newer)

 

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