Cuyahoga Valley National Park in Ohio recently hosted leadership of Dartmoor National Park in the United Kingdom. The highlight of last week's get together was a signing ceremony on June 6 for an international Sister Park arrangement.

In an effort to raise awareness of the challenges sea turtles face, the U.S. Postal Service has released a collection of stamps in honor of the "ancient mariners."

Call it the buoy that could.

Knowing the eruptive history of volcanoes is critical to anticipating where and what kinds of eruptions are likely to occur in the future.