Castle Rocks State Park

Magic Valley + Shoshone Area, Idaho

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Castle Rocks State Park


  • Visitors carry climbing crash pads for protection on tricky bouldering problems.- Castle Rocks State Park
  • Rays of sun penetrate the morning cloud cover, highlighting a small burm in the distance.- Castle Rocks State Park
  • The granite rock formations are silhouetted dramatically against the morning sky.- Castle Rocks State Park
  • Climbers make use of a shady ravine for daytime climbing comfort.- Castle Rocks State Park
  • A climber makes her way up one of the many classic climbs in the area.- Castle Rocks State Park
  • A climber looks out at the valley surrounding Castle Rocks.- Castle Rocks State Park
  • Contributor Andrew Stohner tries his hand at an overhanging ledge.- Castle Rocks State Park
  • Sagebrush, grasses, and boulders across the wide landscape.- Castle Rocks State Park
  • Contributor Andrew Stohner finds a toe on a climb in Hostess Gully.- Castle Rocks State Park
  • A climber gaining altitude above the valley floor.- Castle Rocks State Park
  • Prominant granite tower at Castle Rocks.- Castle Rocks State Park
  • Signage is helpful in wayfinding and delineating rock formations.- Castle Rocks State Park
  • Beautiful rust-colored rock against the blue sky.- Castle Rocks State Park
  • A cloud shades the top of a large boulder.- Castle Rocks State Park
  • Textured rock provides plenty of hand and foot-holds for climbers.- Castle Rocks State Park
  • Castle Rock with a layered rock formation in the foreground.- Castle Rocks State Park
  • Beyond Castle Rock, other large rock formations continue to the north and west.- Castle Rocks State Park
  • Castle Rocks from the parking area trailhead.- Castle Rocks State Park
  • - Castle Rocks State Park
Overview + Weather
Spectacular views. Lots of easier climbing routes. Lots of trails.
Little shade. Remote.
Magic Valley + Shoshone Area, ID
Pets allowed: 
Parking Pass: 
General Day Use Fee
Preferable Season(s):
Spring, Summer, Fall
Current Local Weather:
Adventure Description

Adventure Description


The Magic Valley is home to large collections of granite spires that rise out of the grassland valleys like visitors from a distant world. Castle Rocks State Park is one of the best and most accessible displays of granite towers in the area, much like neighboring City of Rocks to the south. The park has long been a mecca for local climbers seeking to test their mettle on the grippy rock surface. Thousands of climbs are scattered throughout the rock towers and boulders, and visitors are offered a chance to see them up close on the many trails that weave through the park. 

The formations have long served as a way-finding tool for travelers in the area, with evidence of human visitors dating back 9,000 years. Spectacular formations are named for their appearance or climbing experience. Red Rib, Shock and Awe, and Jug Wall are just a few of the areas of the park that are marked on the signage along the Boundary Trail that circumnavigates the rocks. A plethora of small boulders are scattered about the site, and the spires themselves offer sport, traditional, and multi-pitch climbing options. 

The sky offers a range of colors throughout the day, and the high desert location will leave you looking for shade by day and a warm sleeping bag at night. The 7,500-foot Smoky Mountain is nearby and home to Idaho's largest forest of pinyon pines, which thrive in this climate.

Yurts are available for reservation online, and they are often booked ahead of time. Small picnic areas are available on site, and visitors are also allowed to find natural rock features on which to enjoy their packed meals. However, there have been issues with pollution in the past, and it is vital to follow the Leave No Trace guidelines to preserve this area for years to come. 


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Location + Directions

Nearby Camping + Lodging

(2 within a 30 mile radius)

Nearby Adventures

(2 within a 30 mile radius)

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