Rhein-Eifel Millstone District

At the "Booser Doppelmaar", western of the municiplity Boos it gives two extensive flat basins in the countryside. One of the two is a dry maar. The other is a pond . They are created through the meeting of hot magma.

The Bellerberg volcano was created 200,000 years ago, a cinder cone typical of the Eastern Eifel. The "Ettringer Bellerberg" and the "Kottenheimer Büden" form the western and eastern flanks of the large Bellerberg volcano. From the summit of the "Ettringer Bellerberg" you have a fantastic view of the surrounding volcanic Eastern Eifel.

About 150 years ago in the " Ettringer Lay " ( Lay= stone quarry ) the deepest stone beeches around the Bellerberg volcano were formed. Not without danger the mighty stone columns of its western lava flow were broken here in order to extract building material or paving stones from it . Today a signposted trail lead direct to the lava flow.

The Kottenheimer Winfeld is a former quarry area in the area of the municipality of Kottenheim and owes its origin to the eruption of the Bellerberg volcano about 200,000 years ago. Today, the idyllic pit landscape with its bizarre rock formations and relics from bygone times, such as crane bases and pit cranes, is part of the volcano park as a landscape monument.