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City Of Rocks National Reserve

Designation: National Reserve

Location: Idaho

Visit Official Park Website

📘 Park Overview

Described by California Trail emigrants as “a city of tall spires,” “steeple rocks,” and “the silent city,” this awe-inspiring landscape continues to captivate. Today, it beckons rock climbers, hikers, campers, hunters, and adventurers with its dramatic scenery, fascinating geology, and echoes of the Old West. The Silent City is ready for you to explore.

🌤 Weather Information

City of Rocks is located in south-central Idaho within the northern edge of the Basin and Range geologic province. Outdoor recreation can be pleasant from April through October. Summers are generally dry with 10 to 15 inches of precipitation in winter and spring. Summer temperatures range widely with night time lows occasionally approaching freezing and midday highs nearing 100° F; however, the typical range of low and high temperature is 45-85. Thunderstorms are common in the summer months (June - August)

🚗 Directions

From Boise: take I-84 East to exit 216 (Declo); go south on Highway 77 to Conner Creek Junction; turn right (west) on Highway 77 Spur to Almo. The visitor center and the park entrance are south of the post office and businesses. From Pocatello: take I-86 West to I-84 West to exit 216 and proceed as above. From Salt Lake City: take I-84 west to exit 245 (Sublette), turn left and go west to Malta. From Malta take Highway 77. Take Highway 77 Spur to Almo.

Images

Snow dusted granite formations jut up from a mountainous juniper covered landscape.

Explore the City

Credit: NPS Photo

3 silhouetted foggy granite formations highlighted by golden sunlight.

City of Rocks offers sweeping vistas and awe-inspiring scenery.

Credit: NPS Photo

Grand scenic view looking down from a high elevation. Granite spires jut up from the landscape.

The majority of outcrops in City of Rocks and all of the pinnacles are either Almo Pluton or Green Creek Complex granite.

Credit: NPS Photo

Two granite pinnacles right next to each other that are similar in size and shape.

Twin Sisters may be similar in size and shape, but one is 2.5 billion years old, the younger sister is only 28 million years old.

Credit: NPS Photo

A granite arch is displayed on the horizon

Forces of nature sculpt unexpected features in granite such as Window Arch

Credit: NPS Photo/Wallace Keck

Replica emigrant wagons rest unhitched at sunrise

Nearly 250,000 California-bound emigrants traveled through City of Rocks (1843-1882)

Credit: NPS Photo/Wallace Keck

Emigrant signature written with axle-grease on granite

California-bound emigrants painted their signature on Register Rock in 1850

Credit: NPS Photo/Wallace Keck

A climber ascends a granite spire with mountains in the distance.

Over half of the 100,000 annual visitors to City of Rocks come to experience climbing

Credit: NPS Photo

Granite arch with sunset peeking through.

Window Arch is one of many impressive rock features found in City of Rocks.

Credit: NPS Photo

Snowy granite pinnacles.

Winter is a great time to experience quiet and solitude in City of Rocks.

Credit: NPS Photo

Activities

Topics

Operating Hours

Sunday
All Day
Monday
All Day
Tuesday
All Day
Wednesday
All Day
Thursday
All Day
Friday
All Day
Saturday
All Day

Entrance Fees

No entrance fees listed.

Entrance Passes

No entrance passes listed.

3-Day Weather Forecast

Monday, May 4

Patchy rain nearby

Patchy rain nearby

High: 65.5°F | Low: 48.1°F

Humidity: 38%

Wind: 9.2 mph

Rain Chance: 80%

UV Index: 7.2

Sunrise: 06:26 AM

Sunset: 08:37 PM

Moon: Waning Gibbous (95%)

Visibility: 6 mi

Dew Point: 43.2°F

Cloud Cover: 80%

Pressure: N/A mb

Air Quality (PM2.5): N/A

Ozone: N/A

EPA Index: N/A

Tuesday, May 5

Patchy rain nearby

Patchy rain nearby

High: 62.2°F | Low: 45.1°F

Humidity: 56%

Wind: 13.4 mph

Rain Chance: 88%

UV Index: 7.9

Sunrise: 06:25 AM

Sunset: 08:38 PM

Moon: Waning Gibbous (90%)

Visibility: 6 mi

Dew Point: 43.5°F

Cloud Cover: 88%

Pressure: N/A mb

Air Quality (PM2.5): N/A

Ozone: N/A

EPA Index: N/A

Wednesday, May 6

Sunny

Sunny

High: 65.2°F | Low: 38.3°F

Humidity: 44%

Wind: 15 mph

Rain Chance: 0%

UV Index: 7.9

Sunrise: 06:23 AM

Sunset: 08:39 PM

Moon: Waning Gibbous (84%)

Visibility: 6 mi

Dew Point: 41.3°F

Cloud Cover: 0%

Pressure: N/A mb

Air Quality (PM2.5): N/A

Ozone: N/A

EPA Index: N/A

Park Events

Junior Ranger Station

Young explorers ages 5-12 are invited to drop by our Junior Ranger Station for hands-on activities, games, and challenges that help them discover the park's natural and crultural wonders.  Kids can arrive anytime within the scheduled hour and a half to complete a Junior Ranger activity at their own pace.

Rangers are on hand to guide, encourage, and answer questions as children learn, create, and work toward earning their Junior Ranger recognition.  A fun, flexible program perfect for curious kids and families.

Location: Located at the visitor center for City of Rocks National Reserve and Castle Rocks State Park

Date: May 29, 2026 12:00am to May 29, 2026 12:00am

Paid Event

History Hikes- A250

Step back in time and explore the stories that shaped our nation during this special series of ranger- led history hikes.  In honor of America's 250th birthday, park rangers will guide visitors along scenic trails whilse sharing tales of the people, events, and landscapes that influenced the region's role in our country's past.

Each hike blends natural beauty with engaging storytelling, offering a deeper look at the park's historic significance-from early settlement and exploration to local milestones that tie into the broader American Story.

These programs are designed for all ages and are a meaningful way to reflect, learn, and celebrate this milestone anniversary together.

Date: May 30, 2026 12:00am to May 30, 2026 12:00am

Paid Event

Junior Ranger Station

Young explorers ages 5-12 are invited to drop by our Junior Ranger Station for hands-on activities, games, and challenges that help them discover the park's natural and crultural wonders.  Kids can arrive anytime within the scheduled hour and a half to complete a Junior Ranger activity at their own pace.

Rangers are on hand to guide, encourage, and answer questions as children learn, create, and work toward earning their Junior Ranger recognition.  A fun, flexible program perfect for curious kids and families.

Location: Located at the visitor center for City of Rocks National Reserve and Castle Rocks State Park

Date: May 30, 2026 12:00am to May 30, 2026 12:00am

Paid Event

Ranger Reveals

Join a park ranger for a short, engaging look into the stories that make City of Rocks National Reserve & Castle Rocks State Park special.  During  Ranger Reveals, rangers share insights about the area's natural and cultural treasures-ranging from history and geology to wildlife, plants, and the landscape around us.  Each session is unique, and topics vary based on the ranger and what's happening in the park that day.  Perfect for curious visitors of all ages.

Date: Jun 4, 2026 12:00am to Jun 4, 2026 12:00am

Paid Event

Fishing Friday- Castle Rocks State Park

Kick off your summer weekends with Fishing Friday- our weekly, family-friendly fishing program held every Friday in June.  Kids and families are invited to join park rangers at the pond in Castle Rocks State Park to learn the basics of fishing, practice their skills, and enjoy time outdoors together.

 

Rangers provide guidance, answer questions, and help young anglers get set up.  A limited supply of fishing poles and bait is available to borrow at no cost, so all you need to bring is your enthusiasm.

 

Great for beginners and fun for all ages.

Date: Jun 5, 2026 12:00am to Jun 5, 2026 12:00am

Paid Event

Archery with a Ranger- Castle Rocks State Park

Take aim and discover the fun of archery in this hands-on program led by park rangers in Castle Rocks State Park 3-D archery range.  During Archery with a Ranger, participants learn basic archery safety, equipment use, and proper shooting techniques in a supportive, family-friendly setting.

Rangers have limited gear-including bows and arrow.  You may also bring your own gear.  No prior experience is needed; just bring your curiosity and willingness to try something new.

Date: Jul 3, 2026 12:00am to Jul 3, 2026 12:00am

Paid Event

Visitor Center & Contacts

📍 Physical Address:
City of Rocks National Reserve
3035 Elba-Almo Road
Almo, ID 83312

🏤 Mailing Address:
City of Rocks National Reserve
P.O. Box 169
Almo, ID 83312

📞 Voice Phone: 208-824-5901

✉️ Email: ciro_superintendent@nps.gov

Park Location


👏 Fun Fact
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