The historic quarry "Ahl" lies south of the municipality of St. Johann in the Vordereifel. The imposing rock face rises steeply north of the Nettetal and is visible from afar due to its yellowish colour.
This view of the Eifel (533 metres above sea level) offers views of many Eifel mountains, such as the Kelberg, Boxberg, Eselsberg and Stromberg. In good weather, you can see the grandstands of the Nürburgring from here. In silence you might even think you can hear the sound of engines.