The City of Rocks is a unique geological formation located in southern Idaho, known for its towering granite spires and rock formations. This area is popular among rock climbers and hikers, offering a variety of outdoor activities. The landscape features large boulders and scenic views, making it a favorite destination for nature enthusiasts. Established as a National Reserve in 1988, the City of Rocks is also rich in history, with evidence of ancient Native American habitation. The site is part of the California Trail, a historic route used by pioneers in the 19th century, adding to its cultural significance.