Greg Vaughn: Devils Tower Dawn
Greg Vaughn: GTNP Grandeur
Greg Vaughn: Second Beach Sunset
Greg Vaughn: Autumn Cottonwoods
Greg Vaughn: Bison on the move
Greg Vaughn: Glacier National Park
Greg Vaughn: Cholla Cactus Garden
Greg Vaughn: Grand Prismatic Spring
Greg Vaughn: 2618-0213
Greg Vaughn: Badlands at Dusk
Greg Vaughn: Hall of Mosses
Greg Vaughn: Badlands National Park
Greg Vaughn: Shi Shi Beach and Point of Arches
Greg Vaughn: Badlands Deer
Greg Vaughn: Badlands Bighorn
Greg Vaughn: Big Badlands Dawn
Greg Vaughn: Big Badlands Sunrise
Greg Vaughn: Sunrise in the Badlands
Greg Vaughn: Joshua Tree National Park
Greg Vaughn: Grassy Spring
Greg Vaughn: Crater Lake
Greg Vaughn: Pretty in Pink
Greg Vaughn: Mesquite Dunes
Greg Vaughn: Undine Falls
Greg Vaughn: Lamar Valley Cottonwood
Greg Vaughn: Grizzly Bear
Greg Vaughn: Mesquite Flat Sand Dunes
Greg Vaughn: Hoh Rainforest
Greg Vaughn: Hidatsa Earth Lodge
Greg Vaughn: Madison Creek Falls