This unique geologic area became a landmark in 1843 for California-bound emigrants. They left wagon ruts across the landscape and their signatures in axle grease on Register Rock, Camp Rock and many others. While the City of Rocks has interesting history, its fame comes from a fairly modern activity: rock climbing. The City of Rocks has granite pinnacles and monoliths more than 300 feet tall and 2.5 billion years old. There are more than 700 climbing routes at the reserve, which is managed by the Idaho Department of Parks and Recreation under a cooperative agreement with the National Park Service.
How to get there: Drive east from Boise on I-84 to Exit 216 (Declo); then head south on Idaho 77 to Almo, where the City of Rocks Visitor Center is located. Signs mark the way to the reserve from there. Expect a five-hour drive.
Activities: Rock climbing, hiking, mountain biking and sightseeing.
Amenities: Outhouses and drinking water, and electrical hookups at Smoky Mountain RV Park.
Nearest place to get supplies: Almo.
Fees/reservations: $12 per night, or $21.20 for electrical hookup sites. You can reserve some sites by calling (866) 634-3246.
Information: (208) 824-5519; www.idahoparks.org.