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Parcs nacionals dels Estats Units
Acadia
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-Index_4-1">National Park Service</a>]]>
American Samoa
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-6">National Park Service</a>]]>
Arches
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Arches">Arches</a>]]>
Badlands
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Badlands">Badlands</a>]]>
Big Bend
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-9">National Park Service</a>]]>
Biscayne
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Biscayne">Biscayne</a>]]>
Black Canyon of the Gunnison
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-11">National Park Service</a>]]>
Bryce Canyon
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-12">National Park Service</a>]]>
Canyonlands
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Canyonlands">Canyonlands</a>]]>
Capitol Reef
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-14">National Park Service</a>]]>
Carlsbad Caverns
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-15">National Park Service</a>]]>
Channel Islands
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-16">National Park Service</a>]]>
Congaree
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Congaree">Congaree</a>]]>
Crater Lake
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-18">National Park Service</a>]]>
Cuyahoga Valley
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-19">National Park Service</a>]]>
Death Valley
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-20">National Park Service</a>]]>
Denali
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Denali">Denali</a>]]>
Dry Tortugas
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-22">National Park Service</a>]]>
Everglades
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Everglades">Everglades</a>]]>
Gates of the Arctic
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-24">National Park Service</a>]]>
Glacier
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-25">National Park Service</a>]]>
Glacier Bay
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-26">National Park Service</a>]]>
Grand Canyon
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-27">National Park Service</a>]]>
Grand Teton
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-28">National Park Service</a>]]>
Great Basin
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-29">National Park Service</a>]]>
Great Sand Dunes
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-30">National Park Service</a>]]>
Great Smoky Mountains
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-31">National Park Service</a>]]>
Guadalupe Mountains
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-32">National Park Service</a>]]>
Haleakalā
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Haleakal%C4%81">Haleakalā</a>]]>
Hawaii Volcanoes
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-34">National Park Service</a>]]>
Hot Springs
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-35">National Park Service</a>]]>
Isle Royale
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-36">National Park Service</a>]]>
Joshua Tree
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-37">National Park Service</a>]]>
Katmai
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Katmai">Katmai</a>]]>
Kenai Fjords
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-39">National Park Service</a>]]>
Kings Canyon
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-40">National Park Service</a>]]>
Kobuk Valley
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-41">National Park Service</a>]]>
Lake Clark
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-42">National Park Service</a>]]>
Lassen Volcanic
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-43">National Park Service</a>]]>
Mammoth Cave
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-44">National Park Service</a>]]>
Mesa Verde
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-45">National Park Service</a>]]>
Mount Rainier
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-46">National Park Service</a>]]>
North Cascades
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-47">National Park Service</a>]]>
Olympic
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Olympic">Olympic</a>]]>
Petrified Forest
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-49">National Park Service</a>]]>
Pinnacles
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Pinnacles">Pinnacles</a>]]>
Redwood
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-51">National Park Service</a>]]>
Rocky Mountain
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-52">National Park Service</a>]]>
Saguaro
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Saguaro">Saguaro</a>]]>
Sequoia
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-54">National Park Service</a>]]>
Shenandoah
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Shenandoah">Shenandoah</a>]]>
Theodore Roosevelt
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-56">National Park Service</a>]]>
Virgin Islands
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-57">National Park Service</a>]]>
Voyageurs
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Voyageurs">Voyageurs</a>]]>
Wind Cave
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-59">National Park Service</a>]]>
Wrangell – St. Elias
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-60">National Park Service</a>]]>
Yellowstone
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/National_Park_Service#cite_ref-61">National Park Service</a>]]>
Yosemite
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Yosemite">Yosemite</a>]]>
Zion
<![CDATA[<br>Source: Wikipedia article <a href="https://ca.wikipedia.org/wiki/Zion">Zion</a>]]>
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