SCOTTSBLUFF, Neb. (AP) — The state's tourism commission has selected two sites in western Nebraska to benefit from a new volunteer program. The commission's selection committee chose the Robidoux Trading Post near Gering and the Cowboy Trail near Chadron as the inaugural sites for the program, which will help maintain or improve sites that are popular with visitors. Volunteers will help restore the historic trading post on May 6 and 7 by removing the chinking, an old form of weather-stripping material stuck between wooden boards to help keep structures watertight.