The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) PBO GPS Network - P103-RedKnolls_UT2008 P.S. Start: 16-Jun-2008 End: 19-Jan-2021 UNAVCO Community, 2008, PBO GPS Network - P103-RedKnolls_UT2008 P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T58K7732