DUBOIS, Wyo. — On a quiet stretch of handsome Western highway, ranch broker Jim Taylor drives his dust-caked SUV while highlighting the attractions in this region of few people, abundant cattle and some of the nation’s priciest parcels of coveted land. “Sold that ranch,” he says, pointing north. A few miles later, Taylor gestures south toward a weathered jackleg fence that stretches endlessly into the distance. “That ranch, too. Actually, sold it twice.”