National Park Service mules carry out supplies up the South Kaibab Trail in the Grand Canyon National Park, AZ Feb. 9th, 2017
A trail worker dives into Lower Lamarck Lake in the Inyo National Forest, CA after a day of building rock steps for hikers and equestrians.
Hikers summit Perito Moreno Glacier, Argentina March 14th, 2015.
Volunteers with the American Conservation Experience work on a switchback on Little Bear Trail in the Coconino National Forest, AZ, October 11th, 2016.
Laura Poulette embraces her son, Issac Deaver, before leaving him at his grandmother's house for homeschooling Berea, KY.
Ramona Plance, a hobbyist beekeeper, starts up her smoker used to keep the guard bees calm when entering the hive in Franklin, NY June 26th, 2014.
The first ever water aerobic class in the New River Gorge National River hosted by the National Park Service, August 7th, 2018.
Jim Sickler touches the stump of a tree he has cut down in anticipation of the construction of the Constitution Pipeline which will run through the back of his property in Franklin, NY, November 15th, 2015.
Andi chants and beats a drum while marching in the People's Climate March in NYC, NY. Over 400,000 people gathered together to take a stand against climate change, September 21st, 2014.
Bill Bellmen, a licensed wildlife rehabber, takes an injured red-tailed hawk out of his cage to examine his talon Rochester, NY.