Klippe

For the style of coin, see Klippe (coin).

Schematic overview of a thrust system. The shaded material is called a nappe. The erosional hole is called a window or fenster. The klippe is the isolated block of the nappe overlying autochthonous material.

A klippe (German for cliff or crag) is a geological feature of thrust fault terranes. The klippe is the remnant portion of a nappe after erosion has removed connecting portions of the nappe. This process results in an outlier of exotic, often nearly horizontally translated strata overlying autochthonous strata. Chief Mountain, Montana and Mount Yamnuska, Alberta, Canada are examples of a klippe.