The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) CVO GPS Network - CLHQ-Crater Lake Headquarters P.S. Start: 13-Oct-2009 End: 14-Nov-2022 Lisowski, Michael, 2012, CVO GPS Network - CLHQ-Crater Lake Headquarters P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T53B5X8V