USA Today

According to results from the 2000 Census, the smallest U.S. county is Loving County, Texas, with 67 people.

An overview of demographic change in Philadelphia, PA.

USA Today publishes its "Sprawl Index" of 271 metro areas and a seven-page feature on the impact of sprawl on America.

The land between San Francisco and Sacramento in California has become too valuable for crops. Farmers are crying "Sprawl!".

We've all heard about naming rights for sports, even skyscrapers. So why not subways?

It takes more than stores and office buildings to revitalize a tired downtown. Las Vegas is implementing a strategy that is also a trend for many cities in the western U.S. -- building housing downtown.

An 1872 mining law lies at the heart of the dispute over who owns Searchlight, a city about 50 miles from Las Vegas.

Amtrak's first high-speed train is rejuvenating hopes for rail travel in America.

The Brookings Institute coins a new term: Edgeless cities. Is this the end result of sprawl?

A new Census study reports that city populations boomed in the South and West, and shows new city population rankings.

After more than a year of delays, Amtrak has the nation's first high-speed train and will begin express service between Boston and Washington in December.

A signficant dot-com backlash is on the rise in high-tech hot spots from Seattle to Austin, Texas, to Chicago. Could this be the new urban sprawl?

Cities throughout California are taking emergency steps against 'office creep' by high-technology companies.

California's most dangerous city for walking responds to the high pedestrian death rate with fines, ads, and high-tech.

The Energy Department releases the locations of 550 places across the nation where radioactive materials were secretly used.

Even at isolated national parks, the sounds of civilization -- engines, car alarms, helicopters -- intrude on the visitor's ear

Private companies pumped toxic waste into the environment while doing secret work for the US during the cold war. Now the secret is out.

Mountains, lakes and balmy weather are nice. But what makes a city truly livable nowadays is strong leadership and regional planning.

The growing problem of dirty air over national parks is disappointing tourists and keeping some away.

Boston, Cincinnati and Minneapolis have the best urban park systems in the US, while Miami, Detroit and Cleveland rank near the bottom.