=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Ushuaia II          860/002 RLR(1977) is 10.0m below Pilar MOP No 4377
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-JUL-93 :
Evidence for possible datum shift following gap in 1970s.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 1999Aug20 :
station is equipped with both float gauge and NGWLMS system. Last data 2006

