Whilst 7th corps was attacking El Hoyo, 15th Vistula was attacking La Carolina on the western road through the mountains.
The Poles were also one brigade short, having also detached it for garrison duty. And they were considerably outnumbered by 2nd Spanish corps, who were supported by the garrison of La Carolina.
The battle opened badly for the Polish cavalry, who were defeated by the Spanish irregular cavalry. The Polish artillery also performed poorly. However the infantry won the day.
At night fell General Espana ordered his battered corps to retreat, leaving the militia garrison of La Carolina to their fate.
The Spanish lost 2400 casualties against 400 Poles.
The full battle report can be found here
link