Overlooking Zabaldica and the Guy river was the bulging hill vindicated by the Spaniards; it was a distinct point on the right of the fourth division, dependent upon the centre of the position but considerably lower. The left of the position also abating in height was yet extremely rugged and steep overlooking the Lanz river and the road to Villalba. General Ross’s brigade of the fourth division was posted on that side, having a Portuguese battalion, whose flank rested on a small chapel, in his front. General Campbell was on the right of Ross. General Anson was on the highest ground, partly behind, and partly on the right of Campbell. General Byng’s brigade was on a second mass of hills in reserve, and the Spanish hill was reinforced by a battalion of the fourth Portuguese regiment. The front of battle being less than two miles was well filled, and the Lanz and Guy river washed the flanks. Those torrents continuing their course break by narrow passages through the steep ridges of San Miguel and Cristoval, and then flowing past Huarte and Villalba meet behind those places to form the Arga river. On the ridges thus cleft by the waters the second line was posted, that is to say, at the distance of two miles from, and nearly parallel to the first position, but on a more extended front. Picton’s left was at Huarte, his right strengthened with a battery stretched to the village of Goraitz, covering more than a mile of ground on that flank. Morillo prolonged Picton’s left along the crest of San Miguel to Villalba, and O’Donnel continued the line to San Cristoval; Carlos D’España’s division maintained the blockade behind these ridges, and the British cavalry under General Cotton, coming up from Tafalla and Olite, took post, the heavy brigades on some open ground behind Picton, the hussar brigade on his right. This second line being on a wider trace than the first and equally well filled with troops, entirely barred the openings of the two valleys leading down to Pampeluna.