Hells Canyon

Gorge of the Snake River in the U.S. Forming part of the Idaho-Oregon boundary, it is 125 mi (200 km) long and for 40 mi (64 km) is more than a mile deep.

A maximum depth of 7,900 ft (2,400 m) makes it the deepest gorge in North America. With its surrounding area of 662,000 acres (268,000 hectares), Hells Canyon was designated a national recreation area in 1975.

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 gorge of the Snake River in the United States, forming part of the Idaho–Oregon boundary, between the Seven Devils and Wallowa mountains. It has a total length of 125 miles (201 km), along 40 miles (64 km) of which it is more than a mile deep. A maximum depth of 7,900 feet (2,400 m) makes it the deepest gorge on the North American continent. Parts of the canyon are richly coloured in shades of yellow, red, and orange, and in places the walls rise perpendicularly for several thousand feet.

      After much controversy between public and private power advocates over damming the Snake River (to help contain downstream floods in the Columbia River), the Idaho Power Company completed three dams in the area—Brownlee (1959), Oxbow (1961), and Hells Canyon (1968). The Hells Canyon-Seven Devils Scenic Area is divided between Wallowa-Whitman National Forest (Oregon) and Nezperce and Payette national forests (Idaho). Hells Canyon, with its surrounding area (662,000 acres [268,000 hectares]), was designated a national recreation area in 1975.

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Universalium. 2010.

Look at other dictionaries:

  • Hells Canyon — is a ten mile wide canyon located along the border of eastern Oregon and western Idaho in the United States. It is North America s deepest river gorgecite web | title = Hells Canyon Overview | publisher = United States National Forest Service |… …   Wikipedia

  • Hells Canyon — Der Snake River auf seinem Weg durch den Canyon Der Hells Canyon (dt. Höllencanyon ) ist mit 2.438 m Tiefe die tiefste von einem Fluss eingegrabene Schlucht Nordamerikas. Er liegt größtenteils im US Bundesstaat Oregon, unmittelbar an der Grenze… …   Deutsch Wikipedia

  • Hells Canyon — 45°22′03″N 116°36′52″O / 45.3675, 116.61444 …   Wikipédia en Français

  • Hells Canyon — Cañón del río Snake en EE.UU., que forma parte del límite entre los estados de Idaho y Oregón. Mide 200 km (125 mi) de largo y alcanza una profundidad superior a los 1,6 km (1 mi) en un tramo de 64 Km (40 mi). Dada su profundidad máxima de 2.400… …   Enciclopedia Universal

  • Hells Canyon — geographical name canyon of Snake River on Idaho Oregon border; deepest in the United States …   New Collegiate Dictionary

  • Hells Canyon Wilderness — is the name of two distinct component units of the United States National Wilderness Preservation System::* Hells Canyon Wilderness (Oregon and Idaho):* Hells Canyon Wilderness (Arizona) …   Wikipedia

  • Hells Canyon Wilderness (Oregon and Idaho) — Infobox protected area | name = Hells Canyon Wilderness iucn category = Ib caption = locator x = 44 locator y = 36 location = Idaho Oregon, USA nearest city = Halfway, OR lat degrees = 45 lat minutes = 27 lat seconds = 0 lat direction = N long… …   Wikipedia

  • Hells Canyon Dam — Infobox Dam dam name = Hells Canyon Dam caption = Aerial view of Hells Canyon Dam official name = Hells Canyon Dam crosses = Snake River reservoir = Hells Canyon Reservoir locale = Hells Canyon maint = Idaho Power Company length = height = 330 ft …   Wikipedia

  • Hells Canyon Scenic Byway — Infobox road state=OR highway name=Hells Canyon Scenic Byway marker maint=Oregon Department of Transportation, Oregon Parks and Recreation Department, etc. length mi=218.4 Length km=351.5 length ref=cite web|title=Hells Canyon Scenic Byway… …   Wikipedia

  • Hells Canyon Wilderness (Arizona) — Infobox protected area | name = Hells Canyon Wilderness iucn category = Ib caption = locator x = 53 locator y = 112 location = Arizona, USA nearest city = Phoenix, Arizona lat degrees = lat minutes = lat seconds = lat direction = N long degrees …   Wikipedia

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