Plains of San Agustin
The basin is bounded on the south by the Luera Mountains and Pelona Mountain ( outliers of the Black Range ) ; on the west by the Tularosa Mountains; on the north by the Mangas , Crosby , Datil , and Gallinas Mountains; and on the east by the San Mateo Mountains . 
<triplet> Luera Mountains <subj> Black Range <obj> has boundary