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

Peatland Minnesota GPS Network - RIVR-Lost River P.S.
Start: 12-Sep-2008
End: 03-Nov-2009
Glaser, Paul, 2010, Peatland Minnesota GPS Network - RIVR-Lost River P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5JH3JHF