<p>A site placed by most ancient sources on the *Aventine and connected with Remus’ rival city foundation, specifically as the point where he was thought to have taken auspices and, later, to have been buried (for the name ‘<i>Remoria’</i>: Dion. Hal., <i>Ant. Rom</i>. 1.85.6, 1.86.2, 1.87.3; Plut., <i>Rom</i>. 11.1; Paulus, in Festus 345; further, <i>Remuria</i>: [Aur. Vict.] <i>Orig.</i> 23.1 Pichlmayr; <i>Remonion, Rignarion</i>: Plut., <i>Rom.</i> 9.4; for Remus’ auspices on the Aventine: Livy 1.6.4; Sen., <i>Brevit</i>. 13.8; Plut., <i>loc.cit.</i>; Paulus, <i>loc. cit.</i>). Despite a competing tradition, which places the Remoria at a greater distance from Rome (Dion. Hal., <i>Ant. Rom</i>. 11.85.6; <i>Orig</i>. 23.1; cf. Aronen 206 for a possible Palatine sanctuary of Remus), most ancient sources situate the Remoria (or terms akin) on the Aventine, more specifically ‘on the highest part of the Aventine’ (<i>in summo Aventino</i>: Paulus, in Festus 345; Dion. Hal., <i>Ant. Rom.</i> 1.86.2; Livy 1.6.4-1.7.1; Ov., <i>Fast</i>. 5.149-52: at the <i>Saxum</i> of *Bona Dea; differently, with Romulus taking the auspices on the Aventine: Enn., <i>Ann</i>. 1.75-76 Skutsch). Ovid (<i>loc. cit.</i>) presents what may have been an Augustan-period mainstream view: that Remus took his ill-fated auspices on the mighty <i>Saxum</i> above the *Bona Dea sanctuary. It is the location of the <i>Saxum</i> that allows the area of the Remoria to be specified. Since Bona Dea’s sanctuary is listed by the Regionary Catalogues in <i>Regio XII</i>, its location on the Aventine’s SE height (the “Lesser Aventine”) is certain, and the prominent cliff forming its N angle — a strategic point included within the Servian Wall (s.v. *Muri: Aventinus) — most likely represents the <i>Saxum</i> (Platner–Ashby, Skutsch, Richardson, Chioffi, Wiseman, Aronen 205; contra, Ziolkowski, who suggests, inconclusively, a site near S. Saba <i>c.</i> 0.5 km SW). Outside the defenses to the S, the cliff extended for <i>c</i>. 70 m to S. Balbina, while inside the circuit a massive mid-Republican retaining wall (*Aventinus: Retaining Wall) expanded the rock face into a sizeable plateau. Remains of luxurious residential complexes dating from the 2nd to 4th c. A.D., including perhaps the Severan <i>domus Cilonis</i>, cover the entire region (Di Manzano and Quinto 81, with reference to an alleged Augustan-period building found in 1839; Guidobaldi; cf. Lanciani, <i>FUR</i> pl. 41). While the possible imperial ownership of this numinous place (cf. Chioffi; Guidobaldi) neither confirms nor contradicts the identification of the cliff as the <i>Saxum</i>, the presence of the grand retaining wall clearly demonstrates an effort to highlight the natural prominence of the site. With due caution, we accept the cliff as the <i>Saxum</i>, and recognize its perceived rôle as Remus’ augurial site, the Remoria of most sources; it is marked with an index number on our map.</p>