MAY 1970 GAUGE MOVED APPROXIMATELY 900 METRES, SEE USHUAIA II           
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Ushuaia I           860/001 RLR(1967) is 10.5m below Pilar Mareas No 1
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Ushuaia I           860/001 RLR(1967) is 10.5m below Pilar Mareas No 1

