Climber with stage 4 colon cancer summits Yosemite's Half Dome with an inspiring message: 'I did this for a reason'
Nature photographer Kirk Keeler ascended Half Dome after years of training amid cancer treatments — with one simple call to action.
Read MoreGrand Teton's recent dog vs. bison incident highlights importance of pet safety rules
Animals like bison and elk will treat domestic dogs like wolves when encountering them in the wild.
Read MoreAll National Parks, Including Yellowstone and Zion, Will Be Free To Visit This Saturday
While some National Parks can cost as much as $35 to visit, all parks will be free Saturday, November 11th as part of the National Park Service's free-fee day.
Read MoreNew entry permit requirements make visiting these 6 national parks easier and less crowded
According to reports from the National Park Service, destinations like Arches and Rocky Mountain National Parks have seen record visitation numbers in recent years, resulting in unprecedented overcrowding.
Read MoreUltimate List of Nonprofit Organizations
Get to know the inspiring nonprofit organizations that are driving positive change around the world. Support and make an impact in an area you care about.
Read MoreNational Forest Foundation Celebrates 21,000 Acres of Reforested Land
The National Forest Foundation has reforested over 21,000 acres of land in the last year and planted over 8 million trees to combat climate change.
Read MoreGrizzly bear baby boom in Yellowstone triples cub count in national park
A mother grizzly bear was spotted with a record five cubs, bringing the total bear cub count to 18, and highlighting the species' recovery.
Read MoreThis National Park is opening a 'firefly lottery' for lucky winners to see a rare firefly light show
Synchronous fireflies illuminate summer nights in national parks across the U.S., captivating spectators and prompting conservation efforts to protect these beloved insects.
Read More10 historical sites to visit to learn more about Asian American, Native Hawaiian, and Pacific Islander heritage
We have compiled a list of historical sites, like 'Iolani Palace and Angel Island, where you can learn more about Asian American, Native Hawaiian, and Pacific Islander heritage.
Read More