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article_snippet.sent: Visitors to the Grand Canyon were forced to stand perilously close to Visitors to the Grand Canyon rim to get a look over the edge until the Skywalk opened .
article_snippet.sent: the Skywalk is nearly 4,000ft above the floor on land belonging to the Hualapai Indian tribe .
article_snippet.sent: For centuries visitors to the Grand Canyon Arizona were forced to stand perilously close to its rim to get a look over the edge.
article_snippet.sent: That all changed in 2007 when the Skywalk opened on land belonging to the Hualapai Indian tribethe Hualapai Indian tribe.
article_snippet.sent: The transparent horseshoe-shaped cantilever bridge is nearly 4,000ft above the floor of the Grand Canyon.