A Traveler Special Report: "Oil Trains" Pose A Significant Threat To National Parks

For more than a century, freight trains have rumbled up and over Marias Pass, skirting the south boundary of Glacier National Park, casting rolling shadows on the Middle Fork of the Flathead River below. Until recently the major threat was a grain car derailment, which on occasion left bears woozy from eating fermented grain. Today a derailment involving a 100-car train hauling highly combustible Bakken crude oil risks an environmental catastrophe unprecedented in National Park Service history.

Essential Spring Guide '15: On The Road To Castles Of Stone And Wood Turned To Rock

Arizona is rich in history -- from the 1800s all the way back to the Late Triassic Period. Stitch together this trip that winds out of Flagstaff to Montezuma Castle National Monument, to Petrified Forest National Park, and ends at Hubbell Trading Post National Historic Site. You’ll experience fascinating chapters of geologic and cultural history.

Tule Springs Fossil Beds National Monument Adds A Missing Link To The National Park System

A window into the last Ice Age in the present-day desert outside of Las Vegas brings a missing link into the National Park System along with a small, but enticing, possibility that fossilized human remains are buried next to those of ancient bison, camels, and even lions.

National Fossil Day Celebrated In National Parks Next Week

Fossils large and small will be the stars of the National Park System next week when National Fossil Day is celebrated on Wednesday.

Exploring The Parks: Fossil Butte National Monument In Windswept Wyoming

Many national parks preserve aspects of the past, and in the case of Fossil Butte National Monument, that past goes back 55 million years ago, a time when the landscape of western Wyoming was very different from the windswept plains we see today.

Nearly 15,000 Acres Of Petrified Forest National Park Open For Backcountry Exploration

It took more than two decades, but a rugged, remote, and intriguing area of Petrified Forest National Park in Arizona is now open to backcountry travelers.

Which National Park Drives Are On Your 2014 Calendar?

With the travel season not too far off, you should be planning your national park adventures. If you're looking for a great scenic drive, we offer the following for your consideration.

Petrified Forest National Park Grows By More Than 4,200 Acres Thanks To The Conservation Fund

A few acres here, a dozen over there, perhaps a thousand at a time. Those increments are slowly growing the National Park System, a system that just jumped by more than 4,200 acres in size thanks to The Conservation Fund.

"Conscience Letters" From Petrified Forest National Park Thieves Tie Bad Luck To "Hot Rocks"

Think twice during your visit to Petrified Forest National Park about walking away with a colorful shard of petrified wood, for that "hot rock" just might bring you a world of hurt.

What Did The Colorado Plateau Look Like 250 Million Years Ago?

What did the Colorado Plateau look like 250 million years? That's a question geologists hope to shed some light on via an ambitious project that is pulling rock cores up from as much as 1.5 kilometers down into the plateau's belly.