Canyon City (Yukon) — 60° 39′ 29″ N 135° 00′ 06″ W / 60.6581, 135.0017 … Wikipédia en Français
Geology of the Grand Canyon area — The geology of the Grand Canyon area exposes one of the most complete sequences of rock anywhere, representing a period of nearly 2 billion years of the Earth s history in that part of North America. The major sedimentary rock layers exposed in… … Wikipedia
Complexe volcanique d'Alligator Lake — Image satellite du complexe volcanique d Alligator Lake visible dans le centre de l image (tâches brunes) non loin du lac Alligator. Géographie Altit … Wikipédia en Français
Geography of Yukon — The Yukon is in the northwestern corner of Canada. The sparsely populated territory abounds with natural scenic beauty, with snowmelt lakes and perennial whitecapped mountains, including many of Canada s highest mountains. Although the climate is … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Yellowstone hotspot — Schematic of the hotspot and the Yellowstone Caldera Location of the hotspot in … Wikipedia
Olympic-Wallowa Lineament — Location of the Olympic Wallowa Lineament. Is the OWL an optical illusion? The Olympic Wallowa lineament (OWL) – first reported by cartographer Erwin Raisz in 1945 [1] on a relief map of the continental United States – is a physiographic feature… … Wikipedia
Columbia River Basalt Group — The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of five states. The Columbia River Basalt Group is a large igneous province that lies across parts of the Western United States . It is found in … Wikipedia
Moses Coulee — Three Devil s grade in Moses Coulee, Washington. The upper basalt is Roza Member, while the lower canyon exposes Frenchmen Springs Member basalt. Moses Coulee cuts into the Waterville plateau in Douglas County, Washington. It is to the west of… … Wikipedia
Copper mining in the United States — US primary copper production 1900 2008. Source: USGS … Wikipedia
