=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Jul-2015 :
PSMSL already holds an historic dataset for Punta Arenas id. 473 dataset is for 1964-1970 which is RLR and 1942-1991 which is Metric. This permanent gauge was established in 1988.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Oct-2016 :   
Using information supplied by SHOA Punta Arenas has been made RLR. Primary benchmark is BM 04 4.151m above Gauge zero. RLR factor is 5.149m.

