Sand Dunes Earthquake Locations - hypoDD using Rio Grande Rift velocity model is preferred

From the publication "Earthquake swarm near Great Sand Dunes, Colorado, investigated with temporary seismic network and machine learning seismic phase analysis." in the Mountain Geologist. Three catalogs were produced using different location algorithms. The catalog titled hypoDD_RGR is the preferred catalog. There were 717 events located by glass3 and SEISAN. 700 of those events were located by hypoDD. Column hypoDD_ID reconciles the events in all three catalogs.