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

SCIGN USGS GPS Network - HMTG-Diamond Valley Reservoir P.S.
Start: 08-Jan-2015
End: 13-Nov-2022
Hudnut, Kenneth, King, Nancy, Aspiotes, Aris G., Borsa, Adrian A., Determan, Daniel N., Galetzka, John E., Stark, Keith F., 2015, SCIGN USGS GPS Network - HMTG-Diamond Valley Reservoir P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5PG1Q1C