It is located within the High Black Forest and lies in a hollow formed by ice age glaciation between the villages of Altglashütten, Falkau and Aha on the territory of the municipality of Lenzkirch.

The lake lies in a trough that runs from the Seebach valley in the northwest to the Schluchsee in the southeast and thus crosses the generally northeastward-running streams in the area.

At the same time the lake, which had only hitherto been fed from the east by the Kähnerbächle, was given another inflow in the form of a small leat (Hangkanal) from the southwest.

Since 1932 the Windgfällweiher has been incorporated into the transfer of water from the Seebach to the Schluchsee (covered leat) and drained since then in the opposite direction i.e. to the south.

[5] On the wooded eastern shore of the Windgfällweiher, a lake barely touched by the streams of visitors to the area, lies a rather less picturesque bathing beach with a listed building.