Nature: Threats Stories

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Ask A Bear: Bags vs. Canisters?

Our resident bruin expert answers all your questions in our weekly feature, 'Ask A Bear.'

Ask A Bear: Are You A Good Swimmer?

Our resident bruin expert answers all your questions in our weekly feature, 'Ask A Bear.'

Phenomenon: Crevasses

These gaping glacier cracks are dramatic–and deadly. Here's how they form, plus three safe places to see a crevasse up close.

Danger Signs: Trail Confusion

Don't want to get lost? Heed this advice on four trail situations that routinely cause problems.

Danger Signs: Burn Zones

Here are the top three wildfire dangers and how to avoid them.

Danger Signs: Bear Country

Hiking where bears are present (that's more than 40 states) always requires precautions, like hanging food. But these three signals demand extra vigilance.

Wilderness Wonders: Most Active Volcano

You better stand back if this Sicilian island volcano starts to spurt.

Natural Born Killers: Top Backcountry Dangers

Which is the bigger backcountry threat, grizzlies or flash floods? Find out what should scare you–and how to survive it–with BACKPACKER's Terror Index.

Danger Signs: Flash Flood

July to mid-September is prime time for heavy rains in the Southwest, where fast-rising water in narrow canyons can turn trickling streams into deadly torrents. Don't get swept away.

Nuclear-Free Hiking

How Cold War weapons sites are becoming America's most unusual new preserves.

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