The gorgeous landscape of Wichita Mountains Wildlife Refuge in Oklahoma includes the delightful oasis of Treasure Lake near Elk Mountain. The refuge boasts almost 60,000 acres of natural grasslands that are now home to reintroduced species including bison, elk, prairie dogs, river otters and burrowing owls. Visitors can enjoy wildlife watching, fishing, climbing, hunting and walking among wildflower blooms. Photo by Stan Schwartz (www.sharetheexperience.org).