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美国亚利桑那州

科罗拉多河上的马蹄湾,美国亚利桑那州 (© Michael Dunn/Getty Images)

科罗拉多河上的马蹄湾,美国亚利桑那州 (© Michael Dunn/Getty Images)

这个马蹄铁能带来好运吗?(Does this horseshoe bring good luck?)

带上你们的靴子和装备,今天我们要去亚利桑那州徒步去马蹄弯。它被称为“大峡谷的东边缘”,实际上距离其他边缘约140英里,实际上更像是附近格伦峡谷的一部分。从科学角度讲,这美丽的景色之所以存在,是因为有一种叫做“根深蒂固的曲流”的东西大约600万年前,该地区接近海平面。科罗拉多河沿着阻力最小的路径蜿蜒而行,在大约500万年前科罗拉多高原抬升时陷入困境。随着时间的推移,河水穿过裸露的砂岩,形成了千英尺深、270度马蹄形的弯曲。
原文:
Grab your boots and gear, today we're heading to Arizona to hike out to Horseshoe Bend. Known as the 'east rim of the Grand Canyon,' it's actually about 140 miles from the other rims and is really more a part of nearby Glen Canyon. Scientifically, the beautiful view exists thanks to something called an 'entrenched meander.' Around six million years ago, the area was closer to sea level. The Colorado River, following the path of least resistance, meandered and became trapped when the Colorado Plateau uplifted around five million years ago. Over time, the river water cut through exposed sandstone, forming the thousand-foot-deep, 270-degree horseshoe-shaped bend.
《© Michael Dunn/Getty Images》