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- Topaz Canyon is a linear, narrow canyon in western Grand Canyon, below the South Rim. It lies in a region of four canyons, and a fifth smaller canyon, all trending mostly northeasterly towards the west-flowing Colorado River, in western Grand Canyon National Park. The name of Topaz Canyon was named by the Board of Geographical Names for precious stones of the region. Topaz Canyon is the southeast border of the linear, and major, forested-landform, Diana Temple; (Slate Canyon is Diana Temple’s northwest border).The northeast terminus of Topaz Canyon intersects with the outfall of Boucher Canyon and the tract of the Tonto Trail (west region). The Boucher Trail starting in Hermit Canyon, (just east of Eremita Mesa), ends at the termini of both Topaz and Boucher Canyons. The middle and lower regions of Topaz Canyon are in slopes and rocks of the Tonto Group. The major visible section of Topaz Canyon are the dull-greenish slopes of the Bright Angel Shale. Northeast and closer to the Colorado River are short, erosion-resistant cliffs of Tapeats Sandstone. The sandstone is the , (also the Great Unconformity, of lost time, ~1,000 million years, and probable lost eroded rock units), the horizontal platform that the Tonto Trail traverses. The upper cliffs of the canyon are rock units of Kaibab Limestone, Toroweap Formation, Coconino Sandstone, and Hermit Shale, down to Supai Group on red-cliffs of Redwall Limestone. These are the rock units northwest on Diana Temple. Vesta Temple southeast between Topaz Canyon and Boucher Canyon, has the upper units of rock mostly removed; but Vesta Temple has a remainder, eroded cliff of Kaibab Limestone, on a shelf of Toroweap Formation, on the upper platform of the non-erosive cliff-former, Coconino Sandstone. (en)
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- 6865 (xsd:nonNegativeInteger)
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- -Grand Canyon, -Arizona, United States (en)
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- Location in the state of Arizona (en)
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- South Rim from the air.jpg (en)
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- Topaz Canyon-, Slate Canyon- (en)
- -Diana Temple, with Marsh Butte at its northeast terminus (en)
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- Topaz Canyon is a linear, narrow canyon in western Grand Canyon, below the South Rim. It lies in a region of four canyons, and a fifth smaller canyon, all trending mostly northeasterly towards the west-flowing Colorado River, in western Grand Canyon National Park. The name of Topaz Canyon was named by the Board of Geographical Names for precious stones of the region. Topaz Canyon is the southeast border of the linear, and major, forested-landform, Diana Temple; (Slate Canyon is Diana Temple’s northwest border).The northeast terminus of Topaz Canyon intersects with the outfall of Boucher Canyon and the tract of the Tonto Trail (west region). The Boucher Trail starting in Hermit Canyon, (just east of Eremita Mesa), ends at the termini of both Topaz and Boucher Canyons. (en)
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