One of the northern ranges is the short Samana Range, beginning at Cape Samana, extending the length of the Samana Peninsula, over thirty miles, and ending near the Gran Estero. The greatest altitude is attained by Mt. Pilon de Azucar and Mt. Diablo which are 1900 and 1300 feet in height, respectively. This group at first sight appears to be an extension of the second chain, the Monte Cristi Range, but its geological formation proves it rather to belong to the great central range. It was probably at a remote period an island lying off from the mainland. The other northern range has its beginning near Samana Bay and extends all the way to Monte Cristi. It is known as the Monte Cristi Range though the eastern portion is also called the Sierra de Macoris. It sends several branches to the coast, the most important one being that which terminates at Puerto Plata. The highest points of the range are Mt. Diego de Ocampo, with an altitude of 4000 feet, Nord Peak 3500 feet, and Mt. Murazo 3400 feet. A notable landmark is Mt. Isabel de Torres, 2300 feet in height, which overlooks Puerto Plata. Its head is usually shrouded in a cap of clouds, and small mists frequently hover about its surface. To Columbus, passing out at sea on his first voyage, the cloudcap appeared shining like burnished silver in the morning sun. He took it to be snow until closer investigation disclosed its true nature, whereupon he named the mountain Monte Plata, or Silver Mount, and the port at the base was afterwards called Puerto Plata. The mountain is said to have been given its present name, Isabel de Torres, in honor of the wife of a prominent settler, Diego de Ocampo, domiciled in Santiago in the early days, after whom the great mountain near that city was named. According to a local legend, this couple, although blessed with worldly goods, was also mutually possessed of such a nagging spirit and ungovernable temper that a separation became necessary, the husband remaining in Santiago, the wife removing to Puerto Plata. When leagues intervened between them their conduct was so charming that the inhabitants of the two cities gave their names to the high mountains near the respective towns. "If you doubt the story," the legend concludes, "there are the mountains to prove it."