Alt Text Map of the state of Idaho noting the locations of towns and the City of Rocks National Reserve, which is labeled with green text. The state is shown in tan and towns as yellow dots. Extended Description The town of Lewiston is in the narrow top of the state along its western border. Boise and Twin Falls are closer to the western border of the state and Idaho Falls and Pocatello are closer to the east. The City of Rocks National Reserve is located southeast of Twin Falls and southwest of Pocatello, near the center of Idaho’s southern border.