The Trójpański Kamień, also known as Třípanský kámen, is a historic boundary stone located in the Central Sudetes, in the Kamienne Mountains on the western slope of Leszczyniec, which reaches an altitude of 736 meters above sea level. The stone takes the form of a three-sided pyramid made of sandstone and was erected in 1732 at the junction of the former borders of Bohemia, Silesia, and the County of Kłodzko. Its architectural shape and location highlight the region's significance as a boundary point between different administrative units. On the stone, one can discern slightly faded coats of arms and the initials of the three landowners whose estates met at this point: MGVH (Count von Hochberg of Książ), JBVS (Baron von Stiellfried of Nowa Ruda), and OAB (the abbot of the Benedictine monastery in Broumov). The Trójpański Kamień is not only an important element of border history but also of the region's culture, illustrating the coexistence of various national and administrative influences. Additionally, several dates and marks were later carved onto the stone's surface, suggesting subsequent boundary demarcations or other boundary marker numbers. An interesting fact is its role as a triangulation point, underscoring the stone's significance from the perspective of measurement methods used in geodesy. The Trójpański Kamień is not only a historical object but also a witness to the changes that have occurred in the region over the centuries, making it a vital part of the local cultural heritage.