(Upper panel) H3 halo stars to date at Galactocentric distances >37.5 kpc, excluding stars identified as Sgr members or failed quality cuts (see the text), are shown as colored circles, coded by V_GSR. The fields observed so far in H3 are shown by gray plus signs. (Lower panel) Our subsample of H3 stars, those from the upper panel with −350 < V_GSR < −155 km s⁻¹, are compared to the gaseous Magellanic Stream, which is color coded to the same scale in V_GSR. The LMC and SMC are shown as black ellipses.