February 10 a portly, handsome officer arrived at Chihuahua. This was General García Conde, and the next day he and the other chiefs, after reconnoitring the pass at the Sacramento River, fifteen or eighteen miles to the north, decided to make a stand at that point. It was a wise decision. The stream, running here toward the east, was crossed at a ford by the route from El Paso, which had a north and south direction. Rather more than two miles north of the river and approximately parallel with it, there was a broad watercourse, now dry and sandy, known as the Arroyo Seco, which after crossing the El Paso highway continued in its easterly course about a mile and a half, turned then toward the south, and joined the river about a mile and a half below the ford. Along the northern bank of the Arroyo lay a road, which extended on the eastern side of the highway to the junction of this watercourse with the Sacramento, while on the western side, bending toward the south, it crossed that river three miles or so above the ford, passed the hacienda of El Torreón, penetrated a defile in the steep and rocky foothills thrust out here by the western cordillera, and rejoined the highway about six miles farther on toward Chihuahua. A triangular block of rugged hills lay thus between this road, the highway and the river, the northeastern corner of which (called Sacramento Hill) almost reached the solid adobe buildings of Sacramento hacienda near the ford.[15.13] Between the river and the Arroyo lay elevated ground cut straight across by the highway. The portion west of the highway was a fairly smooth plateau ascending very gently toward the western cordillera, but the other part rose immediately east of the highway about fifty feet, and formed--roughly speaking--a square one and a half miles on a side, with a broad, smooth hollow in the middle that debouched at the southeastern corner toward the Sacramento, and a dominating hill called the Cerro Frijoles at the northeastern corner, toward which the square sloped up. On the north and west edges of the square the Mexicans constructed a series of well-planned and well-executed redoubts alternating with breastworks--which extended from Cerro Frijoles at the northeast to what we may call Fort N at the southwest--supplemented near the ford with fortifications on both banks of the river, and finally with a redoubt halfway up Sacramento Hill; and these works commanded perfectly the highway, the Arroyo road and the valley of the river. The Torreón route seemed impracticable for the American wagons, but even here fortifications were erected; and still others guarded the Arroyo near its junction with the Sacramento. The principal camp lay in the hollow of the square, which not only protected the troops but concealed both their numbers and their movements.[15.13]