The gypsum sand in this New Mexico national monument comes from the mountains flanking the valley.
White Sands
Of all the great lakes, only this does not touch Michigan.
Ontario
North Carolina site known as known as Graveyard of the Atlantic.
Outerbanks
This small glacial lake in the Lake District of northwestern Minnesota in the United States is the source of the Mississippi River.
Lake Itasca
The Presidential range is in this range in the East Coast.
White Mountains
The world's largest flat-top mountain is this found in Colorado.
Grand Mesa
The sixth-largest of the Hawaiian Islands that is known as the Pineapple Island because of its past as an island-wide pineapple plantation.
Lanai
A 1,330-foot-long, three-foot-high prehistoric effigy mound located on a plateau along Ohio Brush Creek in Adams County, Ohio.
Great Serpent Mound
Archipelago in Puget Sound.
San Juan Islands
This 'dreary' swamp covers about 750 square miles in Virginia & North Carolina.
Great Dismal Swamp
This mountain in New Hampshire holds the record for the highest recorded winds on Earth.
Mount Washington
Lancaster, Pennsylvania is on this river, which shares its name with a type of wagon.
Conestoga
The source of the Mississippi River on the edge of this lake in Minnesota.
Lake Itasca
The second largest salt-water lake in the United States after the Great Salt Lake in Utah, it is named after the French Minister of the Marine, chancellor of France and minister of finance during the reign of France's "Sun King," Louis XIV.
Lake Pontchartrain
The world's longest barrier island which is part of Texas stretching from the city of Corpus Christi also famous for Kemp's Ridley sea turtle nests.
Padre Island
Hawaii has these many large islands considered the 'main islands.'
8
Named for a trapper who once lived there, it's a fertile valley in Wyoming's Grand Teton National Park.
Jackson Hole
The U.S. gained ownership of this iron-rich range of Minnesota via the Webster-Ashburton Treaty of 1842.
Mesabi
Estuary of the Atlantic Ocean that lies between the coast of Connecticut and Long Island, New York that serves as a geographic border between New England and the Mid-Atlantic states.
Long Island Sound
From 1630 until the 19th century, Tegesta was the name of choice for this peninsula.
Florida (after the Tequesta tribe)
Most visited mountain in N America.
Pikes Peak
Only part of the United States outside of Alaska that is north of the 49th parallel and northernmost point in the 48 contiguous states.
The Northwest Angle, Minnesota
Islands located in the middle of the Bering Strait between mainland Alaska and Siberia.
Diomede Islands (Little Diomede belongs to the US)
'Divine' Colorado site noted for its unusual, multicolored rock formations.
Garden of the Gods
The largest estuary in the United States, whose name is derived from an Algonquian word commonly believed to mean "Great Shellfish Bay."
Chesapeake Bay
It's the only California site to host a Winter Olympics.
Squaw Valley
A memorial was erected for the 25 dobermans who gave their lives liberating this largest Mariana island in WWII.
Guam
First US National Monument.
Devil's Tower (1906)
Famous ranch in New Mexico known for Scouting camps.
Philmont
This mountain range extends from Lassen Peak in California to the Fraser River in British Columbia.
Cascades
Hiking trail located in Vermont, running the length of the state. It is the oldest long-distance trail in the United States.
Long trial
Pittsburgh's 'Three Rivers.'
Ohio, Mononghahela, Allegany
Formed by water impounded by Hoover Dam, it is the largest man-made lake and reservoir in the United States.
Lake Mead
Cape on the coast of North Carolina that protrudes the furthest to the southeast along the northeast-to-southwest line of the Atlantic coast of North America, making it a key point for navigation along the eastern seaboard. So many ships have been lost around it that the area is known as the "Graveyard of the Atlantic."
Cape Hatteras
The Four Corners Monument marks the quadripoint in the Navajo Nation and Ute Mountain Tribal Lands in the Southwest United States where these four states meet.
Arizona, Colorado, New Mexico and Utah
Rockies run from this state to this state.
Alaska to New Mexico
Water bodies that are a major tourist destination in the west-central section of Upstate New York, are actually eleven in number, but only seven of the largest are commonly identified as such.
Finger Lakes
A prehistoric pluvial lake that covered much of North America's Great Basin region, was nearly as large as Lake Michigan and significantly deeper. Now a by-word for where land speed records are set.
Lake Bonneville
The oldest continuously occupied European-established city, and the oldest port, in the continental United States.
St. Augustine, Florida
John C. Fremont named the Nevada lake known for its tufa or rock formation after a geometric shape.
Pyramid Lake
Colloquial term for the mostly defunct summer resorts of the Catskill Mountains in parts of Sullivan and Ulster Counties in upstate New York that were a popular vacation spot for New York City Jews from the 1920s through the 1960s.
Borscht belt
This 6,684-foot peak in western North Carolina is the highest U.S. point east of the Mississippi River.
Mount Mitchell
Waterfall on the Snake River located approximately five miles west of Twin Falls, Idaho sometimes called the "Niagara of the West."
Shoshone Falls
Guernsey is one of Britain's islands called these; Santa Catalina is one of California's.
Channel Islands
This rock in Wyoming, a famous landmark along the Pony Express route, is called Register of the Desert.
Independence Rock
North Carolina's Outer Banks create this largest lagoon on the East Coast of the United States.
Pamlico Sound
A valley within Katmai National Park and Preserve in Alaska which is filled with ash flow from the eruption of Novarupta in 1912.
Valley of Ten Thousand Smokes
Block Island Sound separates Block Island from this state's mainland.
Rhode Island
1859: Gold and Silver were discovered at this place in Nevada.
Comstock Lode
This mountain range, a segment of the Rockies, runs from southeastern Idaho to north central Utah and is seen from the Great Salt Lake.
Wasatch
Highest point in the 48 contiguous states.
Mount Whitney, California
The name of this body of water on the Georgia-Florida border comes from a native word meaning "bubbling water", or alternatively "trembling earth", a reference to its spongy bogs.
Okefenokee Swamp
This waterway that allows boats to avoid the open sea stretches from Boston to Brownsville, Texas.
Intracoastal Waterway
Northernmost point in all of US territory.
Point Barrow, Alaska
Highest point in all of US territory.
Mount McKinley, Alaska
Site of the signing of Texas' independence.
Washington-on-the-Brazos
This lake famed for deep blue color and water clarity was formed when a volcano called Mount Mazano erupted.
Crater Lake
The Kodiak Archipelago in this gulf was the site of the first Russian colony in North America.
Gulf of Alaska
The two rivers whose confluence was the site of the Philadelphia Navy Yard, the USA's first naval shipyard.
Delaware and Schuykill
Chain of more than 300 small volcanic islands forming an island arc in the Northern Pacific Ocean, occupying an area of 6,821 sq mi (17,666 km²) and extending about 1,200 mi (1,900 km) westward from the Alaska Peninsula toward the Kamchatka Peninsula. Crossing longitude 180°, they are the westernmost part of the United States (and technically also the easternmost).
Aleutian Islands
Las Vegas is in this desert.
Mojave
This state has 2 national monuments: the Hagerman Fossil beds & Craters of the Moon.
Idaho
The Straits of Mackinac separate the Upper & Lower Peninsulas & connect these two Great Lakes.
Michigan and Huron
Headwaters of Missouri are at this place in Montana and are formed at the confluence of Gallatin, Jefferson and Madison rivers.
Three Forks
Lowest and highest points in CA which are also the lowest and highest in the Continental US.
Death Valley and Mount Whitney (highest in the 48 states) are 80 miles apart
Located in CA, it has the distinction of being the only volcano in the Cascades other than Mount St. Helens to erupt during the 20th century.
Mount Lassen
Cape Cod Life caters to residents of Cape Cod as well as these 2 resort islands.
Nantucket and Martha's Vineyard
Also known as Mount Tacoma, this peak in Washington state last erupted about 150 years ago.
Rainier
Southernmost point in all of US territory.
Rose Atoll, American Samoa
The region of the state of Florida which includes the westernmost 16 counties in the state. It is a narrow strip lying between Alabama and Georgia to the north and the Gulf of Mexico to the south.
Florida Panhandle
Drivers on U.S. 101 can use the Astoria-Megler bridge to cross this river that separates Oregon & Washington.
The Columbia
The strip of water that connects two of the Great Lakes, Lake Michigan and Lake Huron, and separates the Lower Peninsula of Michigan from the Upper Peninsula of Michigan.
Straits of Mackinac
Carved by the waters of the Snake River, this ten mile wide canyon located along the border of northeastern Oregon and western Idaho carved by the waters of the Snake River is the deepest river gorge in North America.
Hell's Canyon
Volcanic craters on Oahu include Diamond Head, Koko Head & this 'bowl' in the heart of Honolulu.
Punchbowl
Only Great Lake located entirely within the United States.
Lake Michigan
Wm. Wrigley Jr. bought this island near L.A. in 1919 & then built a 22-room summer cottage there.
Santa Catalina
A reservoir of southern Utah and north-central Arizona formed by the Glen Canyon Dam on the Colorado River. It is the second-largest (after Lake Mead) artificial lake in the United States.
Lake Powell
Madison, Wisconsin is on an isthmus between these two lakes.
Mendota and Monona
The third largest of the Hawaiian Islands and most populous of the islands in the State of Hawaii. The state capital Honolulu is located on its southeast coast.
Oahu
Main ski mountain of the Sun Valley in Idaho.
Bald Mountain
3 largest islands of the US.
Hawaii, Kodiak Island (off Alaska), Puerto Rico
World's largest active volcanic mass & the centerpiece of Hawaii Volcanoes National Park.
Kiluaea
Peninsula 22 miles from SFO.
Point Reyes
Only state to border just one other state.
Maine (New Hampshire)
The Continental Divide lies along a portion of these two states.
Idaho and Montana
This Idaho ski resort is located in the Sawtooth Mountains was developed in the 1930s by the Union Pacific Railroad.
Sun Valley
The largest tributary by volume of the Mississippi River.
Ohio River
Lowest point in all of US territory at -282 feet/-86 meters below sea-level.
Badwater Basin (Death Valley), California
This resort island off the coast of South Carolina was named for a British sea captain.
Hilton Head
Largest island on Lake Superior, also a National Park.
Isle Royale
This mountain that lies directly outside of Atlanta is the largest granite monolith in all of the country, and one of the largest monoliths in the world. It was also the site of the founding of the second Ku Klux Klan in 1915 because of its massive pro-Confederacy bas-relief.
Stone Mountain
In 1867 the U.S. bought this island group named for a Russian captain & leased it to seal hunting companies.
Priblilof Islands