GCN Circular 4255
G. Hill (Keck), J.X. Prochaska (UCO/Lick), D. Fox (Penn State), B. Schaefer (Keck), M. Reed (Keck): "We have observed GRB 051111 with HIRESr on the Keck telescope for 1800s starting UT 07:03. We detect a series of strong MgII, FeII and SiII absorption features at a redshift z=1.55. Because we detect no additional features redward of the MgII doublet, we adopt this as the redshift of GRB 051111." A full analysis is underway.