YOUR TAKEYour Take: Readers explore our national parksWhile flying the plane over Grand Prismatic Spring at Yellowstone National Park on July 24, 2014, Jassen Todorov used his Canon 6D to get this unbelievable aerial view of the area. "It was an unforgettable experience to witness nature at its best," Todorov says.Jassen Todorov, Your TakePurple lupine in spring bloom frame the mountains of Teton National Park.Donald Gibe, Your TakeA foggy bay at Acadia National Park on the coast of Maine.Dave Thurston, Your TakeThe St. Mary Lake glistens at Glacier National Park in West Glacier, Mont.Dara Fazel, Your TakeA spectacular view at the Grand Canyon on the Boucher Trail.Bob Wajszczuk, Your TakeBison roam on a beautiful day at Grand Teton National Park.Susan Cinquemani, Your TakeA clear shot at Crater Lake National Park on August 23, 2014.Dave Thurston, Your TakeA tree stands alone in the Joshua Tree National Park in March 2014.Ryan McGinley, Your TakeThe sun sets on Newman Peak in the Picacho Mountains as seen from the Sunset Trail in Picacho Peak State Park near Tucson, Ariz., on April 4, 2015.Ryan McGinley, Your TakeTaken from a popular overlook called Tunnel View in Yosemite National Park on March 17.Ryan McGinley, Your TakeSunflowers grow in Badlands National Park in South Dakota.Todd Atherly, Your TakeA replica of a British cannon from the 1700s is displayed in the Yorktown Battlefield in Virginia, part of the Colonial National Historical Park.Michelle Stelter, Your TakeThe supermoon rises over the Grand Teton National Park in Wyoming.Susan Cinquemani, Your TakeA stunning shot of Yellowstone National Park last August.Susan Cinquemani, Your TakeThe sun sets in Saguaro National Park in Arizona.Tammi Elbert, Your TakeA 30 second exposure shot of the night sky in Big Bend National ParkChad Spurlock, Your TakeA look back at the Rio Grande River from the Marufo Trail in Beg Bend National Park.Weston Carls, Your TakeThe sun sets in Big Bend National Park in Texas. "It was the best ending to a day of hiking," said contributor Weston Carls.Weston Carls, Your TakeTrees stand close to 200 feet in the Muir Woods National Monument in Marin County, Calif.Richard Tenenbown, Your TakePlant life shows up in the Arches National Park near Moab, Utah.Dan Eidsmoe, Your TakeContributor Chad Spurlock came across a bobcat while visiting Big Bend National Park. "I froze when I saw it. You usually see such things in a zoo, but there it was, right in front of me," he said.Chad Spurlock, Your TakeYellowstone's Grand Prismatic hot spring is known for the bright multihued algae and bacteria coloring its edges, and the deep blue color at the center of its approximately 200-foot-wide pool.Todd Atherly, Your TakeIt's a rite of passage, contributor Mark Doiron says, for all visitors to the Mesa Arch in the Canyonlands.Mark Doiron, Your TakeKeys View in Joshua Tree National Park.Kat Ballard, Your TakeBadlands National Park in South Dakota.Lorraine Belinda, Your TakeIt's easy to get tunnel vision in the canyons.Merry Tibbetts, Your TakeFlag and fog at the Antietam National Battlefield.Paula Mansfield, Your TakeLassen Peak reflects on Helen Lake at Lassen Volcanic National Park in California.Bachir Badaoui, Your TakeVisitors to San Juan National Historical Park in Washington can hike at American Camp.Kat Ballard, Your TakeThe main road transecting Death Valley National Park from east to west is California Highway 190.J. Todd Dussault, Your TakeA coyote in Death Valley on California Highway 190.J. Todd Dussault, Your TakeHow to become a Your Take contributor.By Renee Klahr, USA TODAYFeatured Weekly Ad