Conservation Groups Say Gray Wolf Spotted On North Rim Of Grand Canyon National Park

Nearly 20 years after gray wolves were returned to Yellowstone National Park, conservationists believe a "disperser" has found its way to the North Rim of Grand Canyon National Park and is looking to carve out a home range.

Guest Column| Defending The Science That Explains Climate Change

Adam Markham, director of climate impacts for the Union of Concerned Scientists' Climate and Energy Program and a co-author of the report “National Landmarks at Risk," has written the following rebuttal to Dr. Daniel B. Botkin's column on climate change and his thoughts on what is, and isn't, driving it.

Many Yellowstone National Park Roads About To Close For Winter To Wheeled Traffic

With October nearing an end, so are your days for driving your own vehicle into Yellowstone National Park.

Photography In The National Parks: Don't Let The Weather Get You Down

In Yellowstone National Park today the wind was blowing cold air, snow and rain into my face as I stood in Lamar Valley and watched as the “new” Lamar Canyon pack, two adults and six pups, made their first public appearance in their valley. The pack visited an old carcass, ran, played and hunted a 7-point bull elk.

It's Physics: Why Smaller Backpackers Can Carry Heavy Packs

Physics seems to have an answer for just about everything. How else could you explain why smaller backpackers can carry rather large backpacks?

Yellowstone National Park Superintendent Honored By NPCA

Yellowstone National Park Superintendent Dan Wenk, who was able to end years of litigation over a winter-use plan for the park, has been honored by the National Parks Conservation Association for his achievements during a nearly four-decade career with the National Park Service.

Study: Yellowstone National Park's Grizzly Bears Can Adapt Diet To Changing Climate

For years, many conservationists have worried what grizzly bears in the greater Yellowstone ecosystem will eat as changing climate and habitat conditions bring fewer whitebark pine nuts, cutthroat trout and other prime food sources. A recent study offers an answer: almost anything else.

Federal Land Managers Agree To Collaborate On National Wilderness Preservation System

A unified approach to managing the country's wilderness areas has been agreed to by the land management agencies under the Interior and Agriculture departments, with goals of connecting more people to wilderness areas and completing wilderness inventories of lands that might be suitable for inclusion in the wilderness system.

Help Out Friends Of Saguaro By Bidding In Their On-Line Auction

Think it'd be nice to spend some time relaxing this winter in Death Valley, or maybe in Sedona, or perhaps in Wyoming right outside Yellowstone National Park? Those destinations could be on your calendar if you're the winning bidder in a fund-raising auction for Friends of Saguaro National Park.

Op-Ed|The National Park Service And Wilderness: 50 Years Of Neglect

After 50 years, you would expect that the U.S. National Park Service (NPS), which administers the largest inventory of wilderness in the world, would have the best wilderness management program in the world. But, you would be very wrong.