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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 7.300m to data values 1938-1955 to refer to RLR
Add 7.218m to data values 1974-1975 to refer to RLR
Add 7.300m to data values for 1976 to refer to RLR
Add 7.218m to data values 1977-1986 to refer to RLR
Add 5.055m to data values 1991 onwards to refer to RLR
RLR is 10.300m below primary benchmark L7 N42