Smoky Mountain Campground — Castle Rocks State Park
Very nice campground with decent spots. Seasonal water and showers, although closed for the winter in November. A pit toilet is a short walk to the equestrian area.
Several RV campgrounds surround City of Rocks National Reserve in southern Idaho, offering options from full-hookup pull-through sites to more basic setups with power and water. City Of Rocks RV provides 24 pull-through sites with electric hookups and water connections, accommodating larger motorhomes on level ground. The park operates with 50-amp and 30-amp service options, and fire rings are provided at each site. "Sites are easy pull-thrus with full hookups. A nice little patch of grass spaces out RVs and gives each site its own outdoor space," noted one visitor about Village of Trees RV Resort in nearby Declo. Smoky Mountain Campground at Castle Rocks State Park offers RV sites with 30/50 amp power and water hookups year-round, though reviews indicate some spots may be too small for larger rigs. Heyburn Riverside RV Park features cement-bordered sites approximately 45 minutes from Twin Falls with both back-in and pull-through options.
Advance reservations are essential during peak climbing season when RV sites fill quickly throughout the area. Most parks within 30 miles of City of Rocks provide sanitary dump stations, though Castle Rocks had its station temporarily closed for repairs according to one review. Cell service varies significantly across the region, with stronger Verizon and AT&T signals available at higher elevation sites and limited connectivity in valleys. Access roads to some campgrounds present challenges, particularly for larger motorhomes. According to one camper, "The 9 miles of gravel road to get there are extremely bumpy with washboard surfaces for most of the way. In a small RV, things were bouncing around." Winter travelers should note that while Smoky Mountain Campground remains open year-round, many surrounding parks close from late September through early May.
"Conveniently located next to the rodeo arena. Nice grass between back-in RV sites. A few larger trees, but mostly fun sun. Power and water at each site, and a free sewer dump."
"Campground and facilities are very well maintained. Clean bathrooms and showers. Access to the Snake River. Pet friendly with poop bag stations throughout the grounds."
"First time was just an overnight but the staff were so nice and the space and amenities were nice so I when I found my travel route passing by I decided to stay here again for a few days."
"We could see the campground (CG) as we got there and pulled right around by the camp host sites and were checked in."
"I picked this campground because it was convenient to I-84. It is a real gem along the Snake River adjacent to the campground. Camp Host did a great job and was very helpful."
"Great flat pull through sites with water and electric. Clean pit toilets. Super close to the City of Rocks for exploring and beautiful views."
"Had plenty of room, dog friendly, lots of amenities and close to town and the park."
from $20 - $35 / night
"This is a Rv resort campground 30amp 120v water and gray tank dump only! But there is a black tank dump station! This is our second stay passing through! And yes we will stYhere again!"
"Lot 2 where we stayed, had full hook ups, though fresh water was still off from winter season."
"Easy access to Burley. On the Snake River. Birdwatching. Fishing. Swimming and boating. Some of the best pads I've ever seen. It would be five star, except the landscaping isn't all in."
from $24 - $25 / night
"Electric and water taps are on even numbered sites and shared with the adjacent odd numbered site, so if your cord or hose is on the short side choose an even numbered site."
"New park with nice open spaces w mostly level gravel parking. New trees that will provide shade in the future."
from $15 - $30 / night
"Smoky Mountain campground is very close to the entrance of City of Rocks NR and just slightly further is Castle Rocks SP, however, the grounds are managed by the state park."
"Located about a 7-mile drive/walk to the entrance of City of Rocks, Smoky Mountain Campground is situated above the valley providing a wonderful view from many sites including space #19 where I parked"
"Beautiful campsite with shade trees, late afternoon sun, closely spaced sites, strong Verizon internet signal, and a paved road that's nice for riding a bike."
"Water and Dump on site too. Lots of picnic tables for day use and many tent spaces. But all very close together."












Very nice campground with decent spots. Seasonal water and showers, although closed for the winter in November. A pit toilet is a short walk to the equestrian area.
Significant traffic noise, but to be expected when so convenient to the freeway. The only non-electric sites are parking on the side of the road as no vehicles are allowed on the grass in the tent area. Not ideal for me in a truck camper. But still a nice stop over for one night.
Frankly I think this place is great. Full services but water was off when I was here but all I need was electric. Wonderful showers. Laundry with reasonable pricing. And you can walk over and have dinner at the Casino.
New place so the trees are small but it is by far the closest camping with services to both the national monument and the state park hiking area. They seem to have added some services since the last reviews and now have an outdoor shower, 3 pit toilets along with the electric and water services. All in, the camping rate is extremely reasonable as compared to the state park rates and the access to hiking and climbing couldn't be better.
I'm camping at the milliner historic park. And it is very very nice. The camp spots are basic pit. Toilet sometimes trash down. Little gravel roads right next to the water. The park is pretty huge, though. And they have just paved the incoming road. Typical BLM except it has lots and lots of stuff to see and paths to walk so fun place to visit. Day passes $5 and camping is 15, so I believe you owe a total of 20 I. Couldn't find a way online to actually pay for the camping. So I think you have to use the entrance fees area.
Pretty sure they're managed by the same county organization and use the same website. It's a cute little park out on a spit, surrounded by water. There was no host and it definitely points one at the website for reservations. Water and electric and pit toilets. The sign points to a dump station in nearby Kimberly.
For a county park, it's cute if small. The issue is getting a reservation requires a myriad of information on a website which is kind of just too much. Seems like the prices are reasonable. The place is cute. The toilets trash electric hookups. I have not seen water or sewer.
There are about 10 formal spots and more dispersed spots if you have a vehicle to get back there. Bathrooms, fire ring, picnic tables and trash at the park next door around a small but drying out lake. Free as of today still.
We drove through. Beautiful suites. Super windy in mid October.
Camping in City of Rocks National Reserve involves varied elevations ranging from 5,500 to 7,800 feet in southern Idaho's high desert environment. Summer temperatures often reach 85°F during daytime but drop below 50°F at night, creating significant temperature swings campers should prepare for. Winter access becomes limited due to snow accumulation on the park's unplowed roads.
Rock climbing opportunities: City of Rocks National Reserve offers exceptional climbing on granite formations with routes for all skill levels. At Castle Rocks State Park, "This is a great place to go if there's swarms of climbers at the City of Rocks because of the fee which tends to drive away most dirtbag (endearing term for us) climbers," notes one visitor who appreciated the less crowded climbing options.
Hot springs access: Almo offers natural hot springs within a short drive of most camping areas. A visitor at Village of Trees RV Resort mentioned, "The staff is AWESOME. Second, Location. Super easy access off I-84. They have a market, deli, A truck stop on the premises."
Riverside recreation: Several camping areas provide direct access to the Snake River for fishing, swimming and kayaking. At Heyburn Riverside RV Park, "It's right on the river with a great paved walking trail through an arboretum. Our dogs loved it," according to one camper who extended their stay to enjoy the water access.
Night sky viewing: The area offers exceptional stargazing conditions away from light pollution. A camper at Castle Rocks State Park shared, "We opened the blinds on the front stargazing window of our Lance. The view was breathtaking! It was such a clear night (and so dark in the campground) that we could see hundreds of stars."
Spacious sites: Many campers appreciate the generous spacing between sites at certain rv parks near City of Rocks National Reserve. At City of Rocks Camp and Climb, "Great place to stay very spacious sites and the view of Castle Rocks State Park are amazing. Within walking distance to town and to the entrance to The City of Rocks National Park."
Walking access to town: Some campgrounds offer convenient walking distance to Almo's small town amenities. A camper at City of Rocks Camp and Climb noted that "Town includes a Steak house, a grocery store, hot springs, pizza and the City of Rocks headquarters."
Shoulder season limitations: Early spring and late fall visitors face reduced services. At Smoky Mountain Campground, "We were disappointed to find that all the water and restroom facilities were closed during the winter. Would absolutely recommend the park, and would gladly stay here during the season."
Road conditions: Access roads can present challenges beyond what's mentioned in reviews. A visitor to Nat-Soo-Pah Hot Springs & RV Park stated, "The campground can get cramped and the pool busy but it's still a great experience close to the city of twin falls."
Highway noise impacts: Some rv parks near City of Rocks National Reserve experience traffic noise due to proximity to major roads. At Country RV Village, "It is right on the highway, from our spot I could've thrown a rock and hit traffic on the I-84," according to a long-term resident.
Swimming options: Several campgrounds offer swimming facilities popular with families. At Nat-Soo-Pah Hot Springs & RV Park, "Very close campsites, and quite busy on weekends. The pool is wonderful for family's and kids. The staff is excellent. Hardest working lifeguard at the pool I've ever seen."
Playground access: Some campgrounds provide dedicated play areas for children. Anderson Camp offers "Lots to do for young children with a large playground, two shallow (2-3ft?) small outdoor pools, one with a water slide (swim and use at your own risk, not attended), putt putt golf."
Market availability: On-site stores vary significantly between rv parks near City of Rocks National Reserve. One visitor noted at Anderson Camp that if they "stocked their market like a KOA, fixed up their outdoor amenities a little nicer, fixed the outdoor speakers by the pool, cleaned up the putt putt," it would improve the family experience.
EV charging options: Electric vehicle owners have specific considerations at campgrounds. At City Of Rocks RV, "The owner, Steve, is super accommodating and cool with charging your EV at the campsite. Electric and water taps are on even numbered sites and shared with the adjacent odd numbered site."
Site spacing details: RV layouts vary between parks with significant differences in privacy. At Heyburn Riverside RV Park, "Both the back-in and pull throughs have cement borders so you have to be fairly precise getting in. A really nice feature for these nicely sized sites are the separate parking space for your vehicle."
Utility placement considerations: Hook-up locations can present challenges at some rv parks. One RVer at Heyburn Riverside explained, "Utilities are placed more to the back of the space and worked fine with great water pressure so use a reducer. However, sewer is placed well back so you may need 15' to 20' of sewer hose."
Frequently Asked Questions
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According to TheDyrt.com, the most popular RV campground near City of Rocks National Reserve is Oakley City RV Park with a 4.0-star rating from 1 review.
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