Adventure: Roslyn Luke trail running in late summer in Yakima Canyon, Washington

Adventure: Chris Solomon trail running on a ddry, dusty evening in the Methow Valley in spring, Washington

Adventure: Charlie Ware trail running in the Wenatchee Mountains near Cle Elum, Washington

Adventure: Justin Nejbauer trail running on the Lake 22 trail in spring, Central Cascades, Washington

Adventure: A trail runner steps in a stream on the Lake 22 Trail, Central Cascades, Washington

Adventure: Basit Mustafa trail running through the subalpine in winter, Rocky Mountains, Colorado

Adventure: A woman takes a breat to stretch while trail running during a fall snow squall in the San Juan Mountains, Telluride, Colorado

Adventure: Louis Aravelo trail running in the snow on the Apex trail near Golden, Colorado

Adventure: A young woman trail running in the snow, Tiger Mountain State Forest, Central Cascades, Washington

Adventure: Ariel Gliboff trail running in the snow on a sunny day in Yakima Canyon, Eastern Washington

Adventure: Chris Motley trail running in Yakima Canyon in winter, Central Cascades, Washington

Adventure: Chris Motley trail running in Yakima Canyon in winter, Central Cascades, Washington

Adventure: Allison Morgan and Camelia Mayfield getting ready for a trail run in the desert near Ben, Oregon

Adventure: Jennifer Forrester and Andrew O'Connor trail running in the alpine, Mt. Rainier National Park, Washington

Adventure: Jennifer Forrester trail running below the Paradise Glacier and Little Tahoma, Mt. Rainier National Park, Washington

Adventure: Alex Aizenman trail running at Yellow Aster Butte in the North Cascades in autumn, Washington

Adventure: Alex Aizenman trail running beneath a rainbow at Yellow Aster Butte in the North Cascades in autumn, Washington

Adventure: Bronwyn Crossman trail running through the alpine tundra in autumn, Mt. Baker Wilderness, Washington

Adventure: Jennifer Forrester and trail running in the alpine, Mt. Rainier National Park, Washington

Adventure: Michael Hildebrand trail running through the scrub brush desert of Eastern Washington, Vantage

Adventure: Rella Billie trail running along a dusty trail in Yakima Canyon, Washington

Adventure: Chris Solomon trail running through a field of balsam root wildflowers in the Methow Valley in spring, Washington

Adventure: Erica Moore trail running on the Lake 22 trail in spring, Central Cascades, Washington

Adventure: Chris Solomon trail running past an old abandoned house in the Methow Valley in spring, Washington

Adventure: Elizabeth Kovar trail running above Yakima Canyon at sunset, Cascade Foothills, Washington

Adventure: Ariel Gliboff trail running in the fog, Mt. Erie, Anacortes, Washington

Adventure: Andrew O'Connor trail running in the alpine, Mt. Rainier National Park, Washington

Adventure: Josh Dedering trail running in Garrapatta State Park, Big Sur Coast, California

Adventure: Melissa Hagedorn trail running in the Cainville Mesa badlands, Cainville, Utah

Adventure: Ladia Albertson-Junkans trail running at Discovery Park at sunset in winter, Seattle

Adventure: Olympic steeplechase athlete Emma Coburn trail running at Torrey Pines State Park, San Diego, California

Adventure: Julia Malon, Roxanne Vogel, and Caitlin Landesburg getting ready for a trail run at Mt. Tamalpais, Marin County, California

Adventure: Mario Mendoza getting ready for a trail run in the desert near Ben, Oregon

Adventure: Mario Mendoza trail running by headlamp, Smith Rock State Park, Oregon

Adventure: Andrew O'Connor spashes through a creek while trail running near a waterfall in Yakima Canyon, Washington

Adventure: Andrew O'Connor trail running near a waterfall in Yakima Canyon, Washington

Adventure: A young woman trail running below Mt. Baker, Mt. Baker Wilderness, Washington

Adventure: Charlie Ware trail running in the Wenatchee Mountains near Cle Elum, Washington

Adventure: Charlie Ware and Eva Hsu rail running in the Wenatchee Mountains near Cle Elum, Washington

Jessica Heyting trail running in Spray Park, Mt. Rainier National Park, Washington

Adventure: Bronwyn Crossman trail running in the alpine beneath Mt. Baker, Washington