Traffic on several local rivers, the highways of this largely roadless province, was halted.

ECONOMIST: Out by Panama��s front door, in through the back?

The state of Oregon is concerned about harvesting in so-called roadless areas, so it filed an administrative appeal.

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He wandered and hitchhiked from prairie to desert to forest to roadless area.

BBC: Call of the wild

Without decent transport on Mongolia's roadless steppe, a ready market for livestock and processed goods was no longer assured, particularly for remote herders.

ECONOMIST: Nomadism in Mongolia

Landmarks such as the Washington Monument showed up submerged in bodies of water, and big chunks of the globe appeared as roadless wastelands.

CNN: The top 10 tech 'fails' of 2012

But it takes areas that are now roadless - that's a technical designation, but it also means they don't have roads - in our national forests.

NPR: Rocky Mountain Activist Carole King

REI, for instance, actively supported the Clinton-era Roadless Area Conservation Rule, which in 2001 locked up a third of all national forests, dealing another blow to logging and mining.

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The country is so vast and roadless that no one knows, to the nearest million, how many people died in the war, let alone how many potential voters live there now.

ECONOMIST: Democratic Republic of Congo