Lake Mead National Recreation Area. ID: 0000 0000 0506 0858 [detail] © 2006 Joseph Dougherty/ecology.org	National Park Service sign at the Lake Mead National Recreation Area. ID: 0000 0000 0506 0859 [detail] © 2006 Joseph Dougherty/ecology.org	National Park Service sign at the Lake Mead National Recreation Area. ID: 0000 0000 0506 0860 [detail] © 2006 Joseph Dougherty/ecology.org	Hoover Dam backs up the Colorado River to form Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0861 [detail] © 2006 Joseph Dougherty/ecology.org
Hoover Dam backs up the Colorado River to form Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0862 [detail] © 2006 Joseph Dougherty/ecology.org	Hoover Dam backs up the Colorado River to form Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0863 [detail] © 2006 Joseph Dougherty/ecology.org	Hoover Dam backs up the Colorado River to form Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0864 [detail] © 2006 Joseph Dougherty/ecology.org	Visitor's Center at the Hoover Dam, where the Colorado River forms Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0865 [detail] © 2006 Joseph Dougherty/ecology.org
Cars drive across the Hoover Dam, where the Colorado River forms Lake Mead on the Nevada-Arizona border. ID: 0000 0000 0506 0866 [detail] © 2006 Joseph Dougherty/ecology.org	View of Pyramid Lake ID: 1351 3163 4288 0075 [detail] Unknown (CAS) © 2007 California Academy of Sciences	Jarbidge Wilderness ID: 0000 0000 0514 1581 [detail] © 2014 Monty Rickard

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