City of Rocks National Reserve

City of Rocks National Reserve is a rugged and scenic destination in southern Idaho, renowned for its towering granite spires, dramatic rock formations, and rich pioneer history. Established as a national reserve in 1988, it protects a unique landscape that has attracted travelers, climbers, and adventurers for centuries. The area’s distinctive geological formations were created over 2.5 billion years ago, shaped by erosion and volcanic activity. Early pioneers traveling along the California Trail in the mid-19th century nicknamed the area “City of Rocks” because the imposing granite monoliths resembled the ruins of an ancient city.

The reserve is a world-class rock climbing destination, with over 600 climbing routes of varying difficulty. Hikers and nature enthusiasts can explore more than 22 miles of trails, encountering diverse plant and animal life, including mule deer, golden eagles, and unique high desert flora. The area’s historical significance and natural beauty led to its designation as a national reserve, preserving its geological wonders and the legacy of westward expansion. City of Rocks remains a treasured destination for climbers, hikers, and history buffs alike. I’ve visited the City multiple times and look forward to climbing there again.