MAY 1970 GAUGE MOVED APPROXIMATELY 900 METRES, SEE USHUAIA II
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Ushuaia I           860/001 RLR(1967) is 10.5m below Pilar Mareas No 1
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Ushuaia I           860/001 RLR(1967) is 10.5m below Pilar Mareas No 1