Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Rockland is now an Historic station. Last data received was for 1987.Primary benchmark on the original RLR diagram was BM 1 this no longer appears on the NOAA website. Last Primary benchmark 5490 K 1976 10.060m relative to TGZ also appears on the original diagram with a value of 10.058m