Petit-Hallet was owned for a long time by the chapter of Saint-Lambert de Liège. A church was already mentioned on this site in 1139. The current church was rebuilt in 1757/1758 in limestone bricks and flint. It is - almost naturally - dedicated to Saint Lambert.
The church was restored in 1829, after a violent earthquake that had damaged it the year before. In 1865, numerous anchors were placed to strengthen the tower. The church is accessible via a portal with a chronogram (1757).
There are several gravestones incorporated in the wall around the church, which is located on a rather overgrown height.
When I visited, the various grasses sometimes reached above my waist. I also noticed that there are still quite a few pieces of gravestones, many broken or in part. Unfortunately, there were also some plants and grasses among other plants that in my opinion deserve some maintenance, even though the church and its surroundings are not in the best condition.
Even though it dates from the 1930s: I would rather not see a grave of a child who was barely two years old among weeds, but that is my opinion of course.
Furthermore, it is quite beautiful, situated a bit higher, and especially a nice path to it.