The visitor center at City of Rocks National Reserve is open 8:00 AM to 4:30 PM, 7 days a week from mid-April to mid-October, and Wednesday through Sunday during the winter months.
There is no entrance fee to enter City of Rocks National Reserve.
From Boise, take I-84 East to exit 216, then south on Highway 77 to Almo, where rugged beauty and historic trails await.
Park in designated areas, not along roadsides. No specific RV size limits mentioned. Overnight parking permitted in campsites. $7 daily motor vehicle entry fee or Idaho State Parks Passport required.
Accessibility & permits
Emergency
- Cell service availability:None
City of Rocks National Reserve, situated in south-central Idaho, is a majestic tableau of natural and historical significance. This 14,407-acre reserve, established in 1988, is a symphony of granite spires and monoliths, some reaching as high as 60 stories, their textured faces a testament to 2.5 billion years of geological history.
The landscape, dotted with pinyon pine forests and rolling hills, is a vibrant tapestry of life. Over 750 species of plants and animals call this reserve home, including the cliff chipmunk, Virginia warbler, and Simpson’s hedgehog cactus. The area’s dramatic scenery was a pivotal landmark on the California Trail, with hundreds of pioneer inscriptions and wagon ruts still visible today.
For the adventurous, City of Rocks offers world-class rock climbing with over 700 routes, ranging from moderate to advanced climbs. Hikers can explore trails like the Circle Creek Trail, while horseback riders and mountain bikers can traverse the reserve’s extensive networks. Winter brings opportunities for snowshoeing and skiing, each season painting the reserve in a unique palette of colors and activities.
Visitors can immerse themselves in the local culture by exploring the nearby town of Almo, with its quaint shops and restaurants. The reserve’s visitors center, open from Wednesday to Sunday, provides a wealth of information on camping, hiking, and other recreational opportunities. As the sun sets, the reserve transforms into a tranquil haven, perfect for stargazing or simply absorbing the ancient beauty of this natural wonder. Whether seeking adrenaline-pumping climbs or serene nature walks, City of Rocks National Reserve is an unparalleled destination for those who crave a deep connection with the natural world.
- Area (mi²)
- 23
- Annual visitors
- 110 000
- Established year
- 1988
Top 3 Facts about City of Rocks National Reserve
The area features granite spires and monoliths that reach heights of up to 60 stories tall and are estimated to be over 2.5 billion years old.
In this bio-geographic crossroads, diverse habitats support a rich tapestry of life. Pinyon-juniper-mahogany forests and aspen-riparian areas are home to golden-mantled ground squirrels and great basin pocket mice. Sagebrush flats host Ord’s kangaroo rats, while spruce-fir forests above 7,000 feet shelter a variety of birds. Unique flora includes mountain cactus and sagebrush buttercup. Wildlife adapts to extreme conditions, with nocturnal activity in summer and hibernation or migration in winter, making every visit a vivid exploration of resilience and beauty.
In this dramatic landscape, towering granite spires, some exceeding sixty stories tall and 2.5 billion years old, rise abruptly from rolling sagebrush hills. The pristine night skies, designated as an International Dark Sky Park, offer an awe-inspiring celestial display. Here, hikers and climbers alike can marvel at the unique geology and vibrant ecosystem, with over 700 climbing routes available on the smooth granite faces.
Family programs
- Junior Ranger
- Ranger-led Tours
- Workshops & Hands-on Activities
- Night Sky & Astronomy
- Family Camping & Overnight
- Virtual Junior Activities
Travel Tips
Plan Ahead
Plan a 2-3 day visit, especially during the wildflower season. Stop by the visitor center for maps and insights. Anticipate rocky terrain and pack accordingly. Rest often, and bring meals as options are limited. Attend the annual Star Party for stargazing.
Pack Appropriately
Pack layers for variable weather, sturdy footwear, and a backpack with essentials like water, snacks, map, first aid kit, and headlamp. Bring camping gear if staying overnight. Check the season for specific needs like warm hats or bug spray.
Respect Wildlife
Respect the land and its inhabitants by staying on designated trails, avoiding wildlife during extreme weather, and keeping a safe distance to protect unique flora and fauna. Leave no trace and support dark-sky preservation efforts.
Stay Informed
Check weather forecasts and trail conditions. Wear appropriate gear, stay on marked trails, and avoid ledges and fast-moving water. For emergencies, call 911 or park authorities. Stay informed about fire restrictions and park rules.
Seasons
In spring, as wildflowers bloom and temperatures rise to the 60s and 70s, experience pristine night skies and world-class climbing. Witness the vibrant ecosystem come alive during the Spring Happening event, a perfect time for hiking, biking, and horseback riding amidst dramatic granite spires.
Summer brings warm days (70s-90s°F) and clear skies, ideal for hiking, rock climbing, and stargazing in this International Dark Sky Park. Witness the annual Perseid meteor shower in August for a celestial spectacle. Perfect for outdoor enthusiasts seeking adventure and breathtaking vistas.
Experience autumn’s vibrant hues amidst towering granite pinnacles, with mild temperatures (40s-60s°F) and crisp air. Enjoy the annual Almo Harvest Festival in October, showcasing local flair and harvest delights. Ideal for hiking and scenic drives, fall is a perfect time to visit, avoiding summer crowds and winter chill.
Experience winter’s serene beauty from November to April, with temperatures often in the 20s-40s°F. Enjoy snowshoeing, skiing, and uncrowded trails, though some roads may be impassable due to snow. A tranquil escape for the adventurous.
Frequently Asked Questions
Ready to dive into what City of Rocks National Reserve has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!
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The closest town is Almo, which has limited services including one motel, a gas station, and two restaurants. Almo is also where the shared Visitor Center for City of Rocks National Reserve and Castle Rocks State Park is located.
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You can hike, mountain bike, or go wildlife viewing and birding in this park. There are camp sites available and excellent trails for various skill levels. The park is also a great spot for photography and offers scenic views, especially during sunrise and sunset.
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The information provided does not specify the costs for City of Rocks State Park. However, if you are looking for general fee information for state parks, most North Carolina state parks are free to access for day-use, but some areas like reservoirs and campgrounds have specific fees.
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It costs $20 per vehicle for daily entrance. An annual pass is available for $40, valid for one year from purchase.