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 3.990m to data values 1940-2003 to refer to RLR
Add 4.573m to data values 2005 onwards to refer to RLR
RLR is 9.388m below primary benchmark B.M. 1 (MARINE SURVEY DIVISION)