If the image above appears blurry, or you would like to see a larger image, please view the full-sized image of the RLR diagram.
Add 3.963m to data values 1971-1973 to refer to RLR
Add 3.963m to data values 1987 onwards to refer to RLR
RLR is 26.632m below primary benchmark IGN O.L.K. 3P3 no 12