Donate to PSMSL
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 4.914m to data values 1940-1987 to refer to RLR
Add 4.928m to data values 1988 onwards to refer to RLR
RLR is 10.232m below primary benchmark BM AS-1/2531