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Grand Canyon National Park

Grand Canyon National Park

Carved out by the Colorado River, the Grand Canyon (nearly 1,500 m deep) is the most spectacular gorge in the world. Located in the state of Arizona, it cuts across the Grand Canyon National Park. Its horizontal strata retrace the geological history of the past 2 billion years. There are also prehistoric traces of human adaptation to a particularly harsh environment.

Description is available under license CC-BY-SA IGO 3.0

Parc national du Grand Canyon

Sculpté par le Colorado, le Grand Canyon, de près de 1 500 m de profondeur, est la gorge la plus spectaculaire du monde. Situé dans l'Arizona, il traverse le parc national du Grand Canyon. Ses strates horizontales retracent une histoire géologique s'étendant sur 2 milliards d'années. On y trouve aussi les vestiges préhistoriques d'une adaptation humaine à un environnement particulièrement rude.

Description is available under license CC-BY-SA IGO 3.0

منتزه غراند كانيون الوطني

الغراند كانيون منحوتة حفرها نهر كولورادو بمياهه وهو ينخفض في وادٍ سحيق على عمق أكثر من 15000 متر وهو المضيق الأعظم في العالم. يقع في أريزونا ويعبر منتزه غراند كانيون الوطني. تخطّ طبقاته الأفقيّة سيرة تاريخ جيولوجي يمتد على ملياري سنة. وفيه أيضاً آثار من العصر الحجري تعكس تعاطي البشر مع بيئةٍ شديدة القسوة.

source: UNESCO/ERI
Description is available under license CC-BY-SA IGO 3.0

大峡谷国家公园

著名的科罗拉多大峡谷深约1500米,由科罗拉多河长年侵蚀而成,是世界上最为壮观的峡谷之一。大峡谷位于亚利桑那州境内,横亘了整个大峡谷国家公园。大峡谷的水平层次结构展示了20亿年来地球的地质学变迁,同时它也保留了大量人类适应当时恶劣环境的遗迹。

source: UNESCO/ERI
Description is available under license CC-BY-SA IGO 3.0

Национальный парк Гранд-Каньон

Выработанный водами реки Колорадо, этот каньон глубиной до 1500 м является самым грандиозным из всех каньонов планеты. Он протягивается по территории штата Аризона, и составляет главную природную ось одноименного национального парка. Обнажающиеся геологические слои отражают последние 2 млрд. лет земной истории. Здесь также обнаружены следы пребывания доисторического человека.

source: UNESCO/ERI
Description is available under license CC-BY-SA IGO 3.0

Parque Nacional del Gran Cañón

Situado en el Estado de Arizona, este parque está surcado por el gigantesco cañón cavado por el río Colorado, que con sus 1.500 metros de profundidad es el desfiladero más espectacular del mundo. En sus estratos horizontales está plasmada la historia geológica de los últimos dos mil millones de años. También se hallan en este sitio vestigios de los esfuerzos de adaptación del hombre prehistórico a un entorno particularmente inhóspito.

source: UNESCO/ERI
Description is available under license CC-BY-SA IGO 3.0

グランド・キャニオン国立公園
アメリカ南西部を流れ、カリフォルニア湾に注ぐコロラド川。その中流部アリゾナ州西部の高原をコロラド川がえぐり出した約400kmの大峡谷。深さ1.6kmに達する部分もあり、また両岸の地層は最も古い層で20億年、地表の部分でも2億5千万年の歴史をもっている。1965年の巨大ダム建設計画は、自然保護団体などの反対で中止され、この雄大な自然が保存されることとなった。

source: NFUAJ

Nationaal park Grand Canyon

Met een diepte van bijna 1.500 meter is de Grand Canyon in de staat Arizona de meest spectaculaire kloof ter wereld . De canyon is ontstaan dankzij uitslijtprocessen van de Colorado-rivier, die het hele park doorkruist. De horizontale lagen geven de geologische geschiedenis van de afgelopen twee miljard jaar weer. Er zijn ook prehistorische sporen te vinden van mensen die zich moesten aanpassen aan de bijzonder moeilijke omstandigheden van de omgeving. Door de verschillende hoogtes in het gebied bestaat er een verscheidenheid aan klimaten en leefgebieden. Het nationaal park wordt hierdoor gezien als enorm groot biologisch museum dat zich uitstrekt over vijf verschillende leef- en vegetatiezones.

Source: unesco.nl

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Grand Canyon National Park (United States of America) © Evergreen
Statement of Significance

The Grand Canyon is among the earth’s greatest on-going geological spectacles. Its vastness is stunning, and the evidence it reveals about the earth’s history is invaluable. The 1.5-kilometer (0.9 mile) deep gorge ranges in width from 500 m to 30 km (0.3 mile to 18.6 miles). It twists and turns 445 km (276.5 miles) and was formed during 6 million years of geologic activity and erosion by the Colorado River on the upraised earth’s crust. The buttes, spires, mesas and temples in the canyon are in fact mountains looked down upon from the rims. Horizontal strata exposed in the canyon retrace geological history over 2 billion years and represent the four major geologic eras.

Criterion (vii): Widely known for its exceptional natural beauty and considered one of the world's most visually powerful landscapes, the Grand Canyon is celebrated for its plunging depths; temple-like buttes; and vast, multihued, labyrinthine topography. Scenic wonders within park boundaries include high plateaus, plains, deserts, forests, cinder cones, lava flows, streams, waterfalls, and one of America’s great whitewater rivers.

Criterion (viii): Within park boundaries, the geologic record spans all four eras of the earth's evolutionary history, from the Precambrian to the Cenozoic. The Precambrian and Paleozoic portions of this record are particularly well exposed in canyon walls and include a rich fossil assemblage. Numerous caves shelter fossils and animal remains that extend the paleontological record into the Pleistocene.

Criterion (ix): Grand Canyon is an exceptional example of biological environments at different elevations that evolved as the river cut deeper portraying five of North America’s seven life zones within canyon walls. Flora and fauna species overlap in many of the zones and are found throughout the canyon.

Criterion (x): The park’s diverse topography has resulted in equally diverse ecosystems. The five life zones within the canyon are represented in a remarkably small geographic area. Grand Canyon National Park is an ecological refuge, with relatively undisturbed remnants of dwindling ecosystems (such as boreal forest and desert riparian communities), and numerous endemic, rare or endangered plant and animal species.