It is a left-bank tributary of the Rhine, into which it falls at Sinzig, rising in the Eifel mountains, and having a total length of 55 m.
Of the Eifel range, at the junction of railways from Cologne and Bonn and 10 m.
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.
From Cologne, on the main line of railway to Mainz, and at the junction of the lines to the Eifel and (by ferry) to the right bank of the Rhine.
On the left bank are the elevated plateaus of the Hunsriick and the Eifel, separated from each other by the deep valley of the Mosel, while on the right bank are the spurs of the Westerwald and the Sauerland, the former reaching the river in the picturesque group known as the Seven Mountains (Siebengebirge).
Most of the hills are covered with trees, but the Eifel (q.v.) is a barren and bleak plateau.
That of the northern lowlands and of the sheltered valleys is the mildest and most equable in Prussia, with a mean annual temperature of 50° Fahr., while on the hills of the Eifel the mean does not exceed 44 0 The annual rainfall varies in the different districts from 18 to 32 inches.
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.
Belgium lies upon the northern side of an ancient mountain chain which has long been worn down to a low level and the remnants of which rise to the surface in the Ardennes, and extend eastward into Germany, forming the Eifel and Westerwald, the Hunsriick and the Taunus.
The tract of the Hunsruck, Taunus and Eifel is an extended plateau, divided into separate sections by the river valleys.
The Eifel presents a sterile, thinly-peopled plateau, covered by extensive moors in several places.
North, in the Hunsrck, the Taunus, the Eifel and Westerwald, the Harz and the Frankenwald, the ancient floor is composed mainly of Devonian beds.
The precise age of the volcanoes of the Eifel, many of which are in a very perfect state of preservation, is not clear, but they are certainly Tertiary or Post-tertiary.
For the Eifel, Sauerland, Harz, Thuringian Forest, Rhn, Vogelsberg, Spessart, the Black Forest, the Vosges, &c., the annual average may be stated at 34 in.
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.
MAYEN, a town of Germany, in the Prussian Rhine province, on the northern declivity of the Eifel range, 16 m.
Specular iron ore occurs in the form of brilliant metallic scales on many lavas, as at Vesuvius and Etna, in the Auvergne and the Eifel, and notably in the Island of Ascension, where the mineral forms beautiful tabular crystals.