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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 3.746m to data values 1980-1981 to refer to RLR
Add 3.575m to data values 1982-1984 to refer to RLR
Add 4.575m to data values 1985-1987 to refer to RLR
Add 4.810m to data values 1988 onwards to refer to RLR
RLR is 10.500m below primary benchmark TM 3001 3414