If the owners are responsible, the presence of off-leash dogs can actually make the outdoors a better place
Filmmaker Michael Coleman created this short nature film to celebrate Muir's birthday this past April
Tim Kovar travels the world helping people scale giants
NASA crunched the numbers on 16 years of lightning strike data
'Unacceptable Risk' is a documentary that follows four seasoned firefighters responding to record-breaking fires in Colorado
As a tributary to the Klamath River, Blue Creek is a cold-water lifeline for some of the greatest salmon and steelhead runs remaining on the West Coast.
A city-wide survey of Portland's moss helped scientists to target a likely source of the city's air pollutants
'Human Nature 4K' is a collection of powerful images of the natural world that remind us all of our connection to the environment.
Arborist David Milarch is renowned for helping California coastal redwoods migrate northward to survive the dangerous climate changes that threaten their current habitat.
Here's a look back at our favorite stories from Outside's new outdoor lifestyle column