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The recreation area is named for Glen Canyon , which was flooded by the Glen Canyon Dam , completed in 1966 , and is now mostly submerged beneath the waters of Lake Powell .
 location: Glen Canyon; location: Glen Canyon Dam; location: Lake Powell
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Glen Canyon; location: Glen Canyon Dam; location: Lake Powell