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

Idaho National Laboratory GPS Network - GRRG-Gray's Range, Idaho P.S.
Start: 12-Oct-2008
End: 07-Apr-2020
Payne, Suzette, 2009, Idaho National Laboratory GPS Network - GRRG-Gray's Range, Idaho P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T547487F