Sabby just wrote to me and found an error in column P of the spreadsheet. I have corrected the error and reformatted the spreadsheet to make it more appealing to the eye (I hope ).

Please note the filters for maps 1, 17, 27, 47 and 67 do not take into account the pieces of land outside of the typical 25' x 25' grid.

I will get the revised version posted tonight.