00:44
2.60km
60m
Hiking
Easy 1.6-mile loop through ancient geological formations and historical sites in Castle Rocks State Park, perfect for families.
Last updated: February 26, 2026
Waypoints
Start point
Parking
Get Directions
759 m
Highlight • Cave
Tip by
1.06 km
Highlight • Natural Monument
Tip by
1.74 km
Highlight • Viewpoint
Tip by
2.23 km
Highlight • Viewpoint
2.29 km
Highlight • Historical Site
Tip by
2.58 km
Highlight • Viewpoint
Tip by
2.60 km
End point
Parking
Way Types & Surfaces
Way Types
2.56 km
< 100 m
Surfaces
1.41 km
1.15 km
< 100 m
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Elevation
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Saturday 9 May
18°C
5°C
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This route was planned by komoot.
Yes, the Backyard Boulders Trail Loop is considered an easy hike with a gentle grade, making it ideal for beginners and families with children. It's a great way to explore the unique geology of Castle Rocks State Park.
The trail is located within Castle Rocks State Park. Parking is typically available at designated areas within the park. Specific trailhead parking information can often be found on the official park website or local visitor guides.
Yes, as the trail is located within Castle Rocks State Park, standard Idaho State Park entrance fees apply. You may need to purchase a day pass or have an annual state park pass. For the most current information on fees and any required permits, it's best to check the official Idaho State Parks website or contact the park directly.
Generally, dogs are allowed on trails in Idaho State Parks, but they must be kept on a leash. Please ensure you clean up after your pet to help keep the park pristine. Always check the latest park regulations before your visit, as policies can change.
The trail offers different experiences throughout the year. Late spring is excellent for seeing wildflowers and migratory birds as Stines Creek swells. Autumn provides a vibrant display of colorful foliage from aspen, chokecherry, and willow trees. While accessible year-round, conditions can vary with snow in winter.
The terrain primarily consists of packed dirt, making for a relatively smooth and easy walking surface. It winds around impressive geological formations, offering clear paths and excellent views of the surrounding boulders and landscape.
This trail is rich in both geology and history. You'll encounter the impressive Three Pool Boulders, known for their large panholes. The route also passes the Shock and Awe Shelter, a prehistoric rock shelter, and ancient Pictographs at Castle Rocks State Park, offering a glimpse into thousands of years of human history.
Yes, the route also passes through sections of the Over-the-Rock Trail, North Spur Approach, Crack House Approach, Hostess Gully trail, Shock and Awe Shelter trail, Big Time trail, and Fruit Pie trail. This offers opportunities to observe climbers or explore further if you wish.
The trail offers fantastic panoramic views. You'll get some of the best views of the ancient geology within Castle Rocks State Park, including the towering Castle Rock. Key viewpoints include the View of Castle Rocks Geological Area, View of the Valley, and a View of the Albion Mountains from Stines Creek Picnic Area.
This trail stands out for its unique combination of accessible hiking, stunning ancient geological formations, and significant archaeological sites. It offers 360-degree views of extensive boulder formations and provides a rare opportunity to see prehistoric pictographs and rock shelters, making it a culturally rich and visually rewarding experience for all ages.