Sugarloaf Mountain Sugarloaf Mountain Sugarloaf Mountain ( ) is a peak situated in Rio de Janeiro, Brazil, at the mouth of Guanabara Bay on a peninsula that juts out into the Atlantic Ocean. Rising above the harbor, its name is said to refer to its resemblance to the traditional shape of concentrated refined loaf sugar. It is known worldwide for its cableway and panoramic views of the city. The mountain is one of several monolithic granite and quartz mountains that rise straight from the water's edge around Rio de Janeiro. The mountain is protected by the Sugarloaf Mountain and Urca Hill Natural
Sugarloaf Mountain (Massachusetts) Mountain. There may be some truth to this tale; 15,000 years ago the Connecticut River from northern Vermont to southern Connecticut was post-glacial Lake Hitchcock. A now extinct species of giant beaver as big as black bears once inhabited North America at about the same time (see Pocumtuck Range for details). Sugarloaf Mountain, geologically contiguous with the Pocumtuck Ridge to the north, is composed of Triassic arkose sandstone and conglomerate. The Sugarloaf arkose was formed in a rift valley and sits in a half graben regionally called the Deerfield rift basin. The rift basin formed in Triassic-Jurassic time and is