AFFECTED BY METEOROLOGICAL CONDITIONS AND THE                           
CONFLUENCE OF THE PARANA AND URUGUAY RIVERS
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Isla Martin Garcia  860/171 RLR(1971) is 18.0m below Pilar de Mareas
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Isla Martin Garcia  860/171 RLR(1971) is 18.0m below Pilar de Mareas
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Jul-1993
Anomalously large value in April 1959 - correct as received from
authority - also seen in other records (e.g. Buenos Aires
PSMSL code 860/151).