The little town of Baylen is situated in a slight depression of a saddle-backed range of hills which runs southward out from the Sierra Morena. The road which leads through it passes over the lowest point in the watershed, as is but natural: to the north and south of the town the heights are better marked: they project somewhat on each flank, so that the place is situated in a sort of amphitheatre. The hill to the south of Baylen is called the Cerrajon: those to the north the Cerro del Zumacar Chico, and the Cerro del Zumacar Grande. All three are bare and bald, without a shrub or tree: none of them are steep, their lower slopes are quite suitable for cavalry work, and even their rounded summits are not inaccessible to a horseman. The ground to the west of them, over which the French had to advance, is open and level for a mile and a half: then it grows more irregular, and is thickly covered with olive groves and other vegetation, so that a force advancing over it is hidden from the view of a spectator on the hills above Baylen till it comes out into the open. The wooded ground is about two and a half miles broad: its western limit is the ravine of a mountain torrent, the Rumblar (or Herrumblar, as the aspirate-loving Andalusians sometimes call it). The road from Andujar to Baylen crosses this stream by a bridge, the only place where artillery can pass the rocky but not very deep depression. It is necessary to say a few words about the ground eastward from Baylen, as this too was not unimportant in the later phases of the battle. Here the road passes through a broad defile rather than a plain. It is entirely commanded by the heights on its northern side, where lies the highest ground of the neighbourhood, the Cerro de San Cristobal, crowned by a ruined hermitage. The difference between the approach to Baylen from the west and from the east, is that on the former side the traveller reaches the town through a semicircular amphitheatre of upland, while by the latter he comes up a V-shaped valley cut through the hills.