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Concepts

All Southwest Rockies, Northwest & Alaska Northern Plains Oklahoma East & Great Lakes
Rank by: A–Z Area (sq mi) Population

18 entries

Alburgh, Vermont

A Vermont town joined by land only to Canada

Carter Lake, Iowa

An Iowa city on the Nebraska side of the Missouri River

Hurricane Alley

The warm-water path of Atlantic hurricanes

Hyder, Alaska

An Alaska town that lives on Canadian time

Kentucky Bend

A piece of Kentucky you cannot reach from Kentucky

Little Diomede Island

Two and a half miles from Russia, and a day behind it

Point Roberts

A Washington town reachable by land only through Canada

The 100th Meridian

The historic line between the humid East and arid West

The Continental Divide

The Great Divide of the Rocky Mountains

The Delaware Wedge

A sliver of land claimed by three states until 1921

The Eastern Continental Divide

The Appalachian line between Atlantic and Gulf waters

The Fall Line

Where the Piedmont drops to the coastal plain

The Northwest Angle

The only part of the lower 48 north of the 49th parallel

The Twelve-Mile Circle

The curved border that shapes the top of Delaware

Tornado Alley

The most tornado-prone region on Earth

U.S. Time Zones

The four clocks of the contiguous country

Watersheds & River Basins

How the country drains to the sea

Yellowstone’s Zone of Death

A 50-square-mile legal loophole in Idaho