The following information obtained from UNAVCO's online DOI system:
(https://www.unavco.org/data/doi/search/search.html)

Socorro GPS Network - PDBG-Puertocito del Bowling Green P.S.
Start: 20-Nov-2005
End: 21-Jun-2018
Newman, Andrew, 2005, Socorro GPS Network - PDBG-Puertocito del Bowling Green P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T56Q1VB4