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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 5.170m to data values 1901-1917 to refer to RLR
Add 3.260m to data values for 1918 to refer to RLR
Add 5.170m to data values 1918-1919 to refer to RLR
Add 3.260m to data values for 1919 to refer to RLR
Add 5.170m to data values 1920-1930 to refer to RLR
Add 3.260m to data values for 1930 to refer to RLR
Add 5.170m to data values for 1931 to refer to RLR
Add 3.260m to data values for 1931 to refer to RLR
Add 5.170m to data values 1932 onwards to refer to RLR
RLR is 9.600m below primary benchmark BM CROWSFOOT