Find the marker for John Blair Bridge at the posted Coords, and then do the following:
Way Point # 1 = N38 A.BCD W104 5E.FGH
Take the third and fourth numbers in the top date and subtract 29 to get A, take the bottom date and subtract 1476 to get BCD Take the first number in the bottom date and add 5 to to get E, take the top date and subtract 1029 to get FGH
Way Point #2 N38 A.BCD W104 E.FGH
Close to here you will find two sets of numbers each four digits long, hand written with a marker on a large piece of wood, Subtract 12 from the Second and Third numbers in the first numbers to get A, subtract 2346 from the second set of numbers to get BCD. E= 29+the first two numbers in the second set of numbers, and add 8 to the first two numbers in the first set of numbers to get FGH. (this marker has gone missing, so until I can get there to replace it email me a Picture of you self at this location and I will give you the next set of Coords)
Final: = N3X 0A.BCD W104 E.FGH
To get to the final find a Memorial sign, there are two dates on this sign, For X take the fourth number in the first date and add 1. A= the second number in the first date, for BCD add 129 to the first three numbers in the second date. Add 5 to the last two numbers in the first date for E, and for FGH Subtract 1213 from the first date.