The area includes a cragged portion of the plateau. Most of it consists of the dell of Rüti, which is drained by a creek into the Emme. The dell is surrounded by several mountains Räbberg and Binzberg in the north, Büelhölzli in the west, and Schneiteberg in the south. The highest point in Rüti bei Lyssach is located on the northern slope of Schneiteberg with above sea level. To the east the territory of the municipality reaches to the embankment of the Rohrmishubel.