Located in the town of Prats, accessed by crossing Canillo, it is built in a rudimentary way and with humble materials, and maintains the essence of the tradition of our valleys: a rectangular nave with robust walls (1 meter thick) with a semicircular apse on the east side. Two elements stand out, the pumice stone arch at the entrance and the double-spanned bell tower, with a semicircular arch. The complex was restored in the early 1980s. The interior of the irregular walls is well proportioned and level and, despite the restoration, we can clearly see the original structure.