Sugarloaf Mountain and Urca Hill Natural Monument and to conserve, protect and recover the existing Atlantic Forest ecosystem and landscape. The consultative council is chaired by the Municipal Environmental Secretariat, which administers the monument. The natural monument is part of the Carioca Mosaic, created in 2011. The monument became part of a World Heritage Site declared by UNESCO in 2012. The management plan was published in October 2013. Sugarloaf Mountain and Urca Hill Natural Monument The Sugarloaf Mountain and Urca Hill Natural Monument () is a natural monument in the city of Rio de Janeiro, Brazil. It protects the Sugarloaf Mountain and the adjoining Morro da Urca,
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