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_____ contains tidewater glaciers, mountains, fjords, and a temperate rainforest, and is home to large populations of grizzly bears, mountain goats, whales, seals, and eagles.
This region that enticed and influenced President _____ consists of a park of three units in the northern badlands.
This park on the Alaska Peninsula protects the Valley of Ten Thousand Smokes, an ash flow formed by the 1912 eruption of Novarupta, as well as Mount _____.
This park and the co-managed state parks protect almost half of all remaining coastal redwoods, the tallest trees on earth.
The _____ are the largest tropical wilderness in the United States.
The _____ is a 630-foot (192 m) (both high and wide) catenary arch built to commemorate the Lewis and Clark Expedition.
Covering most of Mount Desert Island and other coastal islands, _____ features the tallest mountain on the Atlantic coast of the United States.
Near Seward on the _____ Peninsula, this park protects the Harding Icefield and at least 38 glaciers and fjords stemming from it.
_____ is a geological amphitheater on the Paunsaugunt Plateau with hundreds of tall, multicolored sandstone hoodoos formed by erosion.
This park contains _____ Peak, the highest point in Texas, as well as the scenic McKittrick Canyon filled with bigtooth maples, a corner of the arid Chihuahuan Desert, and a fossilized coral reef from the Permian era.
This park protecting four lakes near the Canada–US border is a site for canoeing, kayaking, and fishing.
Split into the separate Rincon Mountain and Tucson Mountain districts, this park is evidence that the dry Sonoran Desert is still home to a great variety of life spanning six biotic communities.
This area constitutes over 4,000 archaeological sites of the Ancestral Puebloan people, who lived here and elsewhere in the Four Corners region for at least 700 years.
The islands of the _____, at the westernmost end of the Florida Keys, are the site of Fort Jefferson, a Civil War-era fort that is the largest masonry structure in the Western Hemisphere.
This landscape was eroded into a maze of canyons, buttes, and mesas by the combined efforts of the Colorado River, Green River, and their tributaries.
Named for the eroded leftovers of a portion of an extinct volcano, the park's massive black and gold monoliths of andesite and rhyolite are a popular destination for rock climbers.
_____ Peak, the largest plug dome volcano in the world, is joined by all three other types of volcanoes in this park: shield, cinder dome, and composite.
_____ features sheer granite cliffs, exceptionally tall waterfalls, and old-growth forests at a unique intersection of geology and hydrology. Half Dome and El Capitan rise from the park's centerpiece, the glacier-carved _____ Valley.
Situated on the _____ Caldera, the park has an expansive network of geothermal areas including boiling mud pots, vividly colored hot springs, and regularly erupting geysers.
_____'s Blue Ridge Mountains are covered by hardwood forests that teem with a wide variety of wildlife. The Skyline Drive and Appalachian Trail run the entire length of this narrow park.
Named for the prominent bend in the Rio Grande along the U.S.–Mexico border, this park encompasses a large and remote part of the Chihuahuan Desert.
On the _____ River, this park is the largest portion of old-growth floodplain forest left in North America.
This park on the Big Island protects the Kīlauea and Mauna Loa volcanoes, two of the world's most active geological features.
Half of the park's area is underwater. The islands have a unique Mediterranean ecosystem originally settled by the Chumash people.
The _____ volcano on Maui features a very large crater with numerous cinder cones, Hosmer's Grove of alien trees, the Kipahulu section's scenic pools of freshwater fish, and the native Hawaiian goose.
This island park on Saint John preserves Taíno archaeological sites and the ruins of sugar plantations from Columbus's time, as well as all the natural environs.
The country's northernmost park protects an expanse of pure wilderness in Alaska's Brooks Range and has no park facilities.
Gates of the Arctic
Located in _____ Bay, this park at the north end of the Florida Keys has four interrelated marine ecosystems: mangrove forest, the Bay, the Keys, and coral reefs.
Centered on _____, the tallest mountain in North America, _____ is serviced by a single road.
Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert, this park contains sandstone features such as mesas, rock towers, and canyons, including the Virgin River Narrows.
The largest national park in the system protects the convergence of the Alaska, Chugach, and _____ Ranges, which include many of the continent's tallest mountains and volcanoes.
The tallest sand dunes in North America, up to 750 feet (230 m) tall, were formed by deposits of the ancient Rio Grande in the San Luis Valley.
Great Sand Dunes
The southernmost national park is on three _____ islands and protects coral reefs, rainforests, volcanic mountains, and white beaches.
_____ is the hottest, lowest, and driest place in the United States, with daytime temperatures that have exceeded 130 °F (54 °C).
This park protects the Giant Forest, which boasts some of the world's largest trees, the General Sherman being the largest measured tree in the park.
The national park runs for nearly 25 miles (40 km) along the southern shore of Lake Michigan.
_____ lies in the caldera of an ancient volcano called Mount Mazama that collapsed 7,700 years ago. The lake is the deepest in the United States and is noted for its vivid blue color.
With more than 400 miles (640 km) of passageways explored, _____ is the world's longest known cave system.
The largest island in Lake Superior is a place of isolation and wilderness.
_____, an active stratovolcano, is the most prominent peak in the Cascades and is covered by 26 named glaciers including Carbon and Emmons, the largest in the contiguous United States.
This portion of the Chinle Formation has a large concentration of 225-million-year-old petrified wood.
The _____, part of the Appalachian Mountains, span a wide range of elevations, making them home to over 400 vertebrate species, 100 tree species, and 5000 plant species.
Great Smoky Mountains
Based around Nevada's second tallest mountain, Wheeler Peak, _____ National Park contains 5,000-year-old bristlecone pines, a rock glacier, and the limestone Lehman Caves.
The _____, carved by the mighty Colorado River, is 277 miles (446 km) long, up to 1 mile (1.6 km) deep, and up to 15 miles (24 km) wide.
The Big Room is almost 4,000 feet (1,200 m) long, and the caves are home to over 400,000 Mexican free-tailed bats and sixteen other species.
_____ is distinctive for its calcite fin formations called boxwork, a unique formation rarely found elsewhere, and needle-like growths called frostwork.
Situated on the _____ Peninsula, this park includes a wide range of ecosystems from Pacific shoreline to temperate rainforests to the alpine slopes of the _____ Mountains.
Bisected north to south by the Continental Divide, this portion of the Rockies has ecosystems varying from over 150 riparian lakes to montane and subalpine forests to treeless alpine tundra.
The U.S. half of Waterton-_____ International Peace Park, this park includes 26 glaciers and 130 named lakes surrounded by Rocky Mountain peaks.
This site features more than 2,000 natural sandstone arches, with some of the most popular being Delicate Arch, Landscape Arch and Double Arch.
Covering large areas of the Colorado and Mojave Deserts and the Little San Bernardino Mountains, this desert landscape is populated by vast stands of _____.