The City of Rocks National Reserve, also known as the Silent City of Rocks, is a United States National Reserve and state park in south-central Idaho, approximately 2 miles (3.2 km) north of the border with Utah. It is widely known for its enormous granite rock formations and excellent rock climbing.

Kelton is a ghost town, just north of the Great Salt Lake, in the Park Valley area of Box Elder County, Utah, United States. The town was inhabited during the period of 1869–1942. Once an important section station on the First transcontinental railroad, Kelton was dependent on the railroad throughout its history. The town suffered serious setbacks in the 1880s when its busy stagecoach route to Boise, Idaho was discontinued, and in the 1900s when the Lucin Cutoff left it off the main rail line. The strongest earthquake in Utah history caused severe damage in 1934, but Kelton ceased to exist only when the rails were completely removed during World War II.