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

Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S.
Start: 19-Apr-2005
End: 14-Nov-2022
UNAVCO Community, 1998, Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5CZ35HT

Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S.
Start: 13-Oct-1996
End: 19-Apr-2005
Smith, Robert B., 1998, Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5HM56SC

Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S.
Start: 13-Oct-1996
End: 14-Nov-2022
UNAVCO Community, Smith, Robert B., 1998, Yellowstone Caldera GPS Network - LKWY-Lake Wyoming P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5862DTV