During 2009, Traveler posted 67 national park-themed quizzes, mystery photos, mystery spots, and mystery plants. They’re all listed here, complete with links.
Dropping Temperatures, Wet Roads Cause Accidents Involving Roughly 40 Cars at Grand Canyon National Park
A buildup of ice on the tracks was blamed for partially derailing a locomotive pulling a passenger train to Grand Canyon National Park. No one was hurt in the incident, and buses were summoned to take the 70 passengers the rest of the way to the park's station.