Halloween isn't just about carved pumpkins and fake cobwebs. You can create a genuinely eerie atmosphere in your garden using ...

Aspen trees are thriving again in Yellowstone for the first time in 80 years, thanks to wolves reintroduced in the 1990s that helped control elk herds.

Aspen forests help slow the spread of wildfires and could serve as fire breaks in Colorado and other southwestern states, ...

Aspen forest is reclaiming the skyline of Yellowstone National Park after decades of controversy over efforts to return ...