MAYEN, a town of Germany, in the Prussian Rhine province, on the northern declivity of the Eifel range, 16 m.
Of the Eifel range, at the junction of railways from Cologne and Bonn and 10 m.
Iron ore is found in abundance near Coblenz, the Bleiberg in the Eifel possesses an apparently inexhaustible supply of lead, and zinc is found near Cologne and Aix-la-Chapelle.
Most of the hills are covered with trees, but the Eifel (q.v.) is a barren and bleak plateau.
GEROLSTEIN, a village and climatic health resort of Germany, in the Prussian Rhine Province, attractively situated on the Kyll, in the Eifel range, 110o ft.
His interest in mineralogy led him to study the geology of volcanic regions, and he made frequent visits to the Eifel with a view to the discovery of a theory of volcanic action.