Questioning peons through an interpreter, the officers learned of a path which began at the highway near Cuapa, made a circuit on the left through the pedregal, and apparently returned to the highway some distance inside the works, and this received careful attention; but the conclusion was, that while infantry could filter through it, artillery could not pass; and to advance by such a route in the presence of a strong, unshaken enemy, whose front and other flank could not be attacked or seriously threatened, appeared worse than hazardous. Even Scott felt rather depressed on hearing the reports, especially as fortifications were said to exist north of the hacienda. The men, wagons and guns, all covered with mud, that lay scattered about on the wet ground, seemed little indeed like a conquering army. Except for some cattle, the army had only four days' provisions; the hard bread was already musty, and the horses lacked forage.[1]
Later, however, Lee and Beauregard brought somewhat more promising information. To the hacienda of Peña Pobre, a mile and a quarter from San Agustín toward the west, they had found a good road; and then, after proceeding about an equal distance by a mule-path to the top of a sharp ridge, they had seen the path continue to Padierna and the turnpike, which lay in full view nearly a mile and a half away, and they believed it possible to make a road by that line. Their escort had routed a hostile corps of observation, and some men had been seen at work on a rounded hill beyond the turnpike, but no other Mexican forces appeared to be near. Indeed, it seemed probable that much less adequate defences had been provided here than on the great southern highway, and in this direction Scott resolved to strike. "An enemy that halts, vacillates, declines the battle offered him, makes a circuit, hunts for a position and finds none to suit him is an enemy lost," exulted the Diario.[2]
The next morning, August 19, therefore — while Quitman unwillingly remained at San Agustín to guard the base,[3] and Worth, with his engineers and troops, continued to reconnoitre and threaten on the San Antonio side — Scott ordered a force of engineers to build a road in the other direction. Pillow's division was to furnish working-parties, and Twiggs's to clear away whatever Mexican detachments might undertake to
