Hardin KOA
You can tell they are putting a lot of effort into this KOA. Spacing is tight and off season has only water available at middle rows. Road and airport noise. Was a great stop on our way. Friendly owner.
Fort Smith provides several established RV parks along the Bighorn Canyon. Afterbay Campground features sites suitable for big rigs and offers toilets and trash service, though it lacks electric, sewer, and water hookups. Approximately 30 miles away, 7th Ranch RV Park in Garryowen accommodates large motorhomes with full hookup sites including 50-amp electric service, water, and sewer connections. Each site includes a picnic table and grill on level gravel pads with grassy areas between sites. Hardin KOA, located north of Fort Smith, offers 55 RV sites with both 30-amp and 50-amp connections available. "The sites are pull through and we did require a little bit of leveling. All hook-ups worked great."
Access to most RV parks requires navigating some gravel roads that may be bumpy or washboarded in sections. The road to 7th Ranch RV Park includes "a short stretch of dirt road which is a bit bumpy," according to visitor reports. Most parks in the region operate seasonally, with 7th Ranch open from May through October and Hardin KOA available from April through mid-October. Yellowstone River RV Park in Billings remains open year-round for travelers needing winter accommodations. Bathroom and shower facilities at these parks are typically clean and well-maintained, with sanitary dump stations available at most locations. Many parks require advance reservations during summer months when tourism peaks at the nearby Little Bighorn Battlefield National Monument.
"Sites are pull through and we did require a little bit of leveling. All hook-ups worked great. Most sites have a patch of lush green grass and a tree for shade as well as a picnic table."
"Nice small park close to i-90 interstate with lengthy pull through sites and full hookups. Clean updated bathrooms and beautiful scenery all around. Very close to Custer State Park."
"Very helpful office staff, help backing in (the dreaded electrical meters☹️), very clean. No picnic tables ; pets allowed, but I did not find a pet area?"
"Clean, cheerful, easy to get in and out- convenient to the highway- highly recommend Only hiccup was how low to the ground the electric was- we had to bend the cord to connect"
"Can’t beat the proximity to gas & propane, great convenience store and nice RV Stop amenities."
from $45 - $479 / night
"No sewer or showers however, electricity and water and vault toilets. Cell reception is good with Verizon, cell Internet is marginal. Local town has almost no resources."
"Clean and quiet campsite on the water. There are several water spigots and there are sites with electrical hookups for RVs."
"The water pressure is MEH, the full hookups are nice, showers and bathrooms are decent but bring your shower sandals!"
"This is no more/no less than expected from a private campground in eastern Montana. Very convenient off the highway and to town, also about 20 minutes to Little Big Horn."
from $37 - $60 / night
"This campsite is tucked away in a valley, humidity is usually low so u can beat the summer heat by staying in the shade. Very quite. Not many people visit this place."
"The place is off of the highway a good distance so you dont get noise from the road. Definitely will return to the campground."
from $50 - $80 / night
"Big rig friendly, two separate toilet buildings, and I saw a dump station right outside the campground. No cell service. Overall nice campground."
"Open year round but, water and electric are off September 30 through May 1."
"This park has very nice full hookups sites with trees and lawns, some tent only sites at the rear of the park, and several water & electric only sites that are very close together."
"Full hook up year round, lots of full timers makes it a nice and quiet stay! Felt it was a bit on the pricey side at $65 a night! But is worth it to be in the comfort of your own home."












You can tell they are putting a lot of effort into this KOA. Spacing is tight and off season has only water available at middle rows. Road and airport noise. Was a great stop on our way. Friendly owner.
Arrived early mid-week hoping to snag one of the riverfront spots (#3 and #4) but both were taken. #2 was the easiest to access and was fairly private despite being right off the road. Traffic is minimal. Walked along the gravel road enjoying the rock formations and explored the river at various points. Not sure anyone was servicing the bathrooms in late August, have your own TP handy ! Otherwise a great quiet spot to enjoy the night sky. Would stay again.
We stayed for two nights and made full use of the park. It was quiet during the day.
Nice big pull throughs - water had been turned off for the season unfortunately so the bathrooms weren’t open - otherwise a great place to stay - really generous of the town to maintain and provide free camping to visitors
This delightful spot at the end of the toad is now day use only - no camping allowed. (As of Sept 2026.) There is a nearby campground with 7 sites that you pass on the way in. The road is one lane good gravel.
Stayed here end of Sept. No wind and only a few other campers. Marina was closed. Beautiful and peaceful. Uh
This Camp!! site is fairly level right on the creek. We are the only ones here beside the Camp!! post. It’s absolutely gorgeous peaceful.
It’s September 19th. It’s rainy and chilly. I think there may be 6/7 people here total.
On our camping trip, this was by far our favorite stop. The bathrooms were very clean, with doors on the bathroom and shower entries. The individual shower stalls include a bench to set your belongings on so they won’t get wet. The laundry was also very clean. We were in our camper, and only viewed the cabins from the outside. They looked very quaint from the outside. There is also a playground adjacent to the grounds.
Fort Smith is situated along the Bighorn River at approximately 3,000 feet elevation, where the landscape transitions from rolling grasslands to dramatic canyon walls. Summer temperatures typically reach 85-95°F during July and August, with afternoon thunderstorms common. The camping season generally runs April through October, with limited wintertime options requiring a 60-mile drive to year-round facilities.
Fishing access points: The Afterbay Campground offers excellent access to premier trout fishing. "This campsite is on afterbay which is not in the canyon. Campsite is well maintained with drop toilet but no water," notes John H. The site also features "a fishing dock with a small ramp to access the river with," according to Van S.
Historical exploration: Visit 7th Ranch RV Park to explore nearby Little Bighorn Battlefield National Monument. "Custer actually rested his troops at this site just prior to starting the battle," explains David N. The park is approximately 30 minutes from the battlefield, making it a convenient base for history enthusiasts.
Wildlife viewing: Drive the 45-minute route to Horseshoe Bend Campground for wildlife spotting opportunities. "Heard coyotes at night but sounded far away," reports Natasha M. Another camper noted, "We have found scorpions, however, so always be aware of your surroundings!"
Clean facilities: Billings KOA Holiday maintains exceptional bathhouses. "We took advantage of the amazing showers," mentions Art S., while another camper observed the "bathroom/showers look newly remodeled." Though located about 90 miles from Fort Smith, many travelers find it worth the drive.
Spacious sites: Many campgrounds offer ample room between sites. "The sites were spacious, some with electric and water," notes Art S. about the Billings KOA. At Horseshoe Bend, "The spots are spread out enough so you're not close to other campers."
Off-grid relaxation: Limited cell service creates a true disconnect from daily life. "No cell signal, which is not really a bad thing in my opinion," shares Samantha L. about Horseshoe Bend Campground. This makes Fort Smith area campgrounds ideal for those seeking digital detox.
Seasonal timing: Most campgrounds near Fort Smith operate seasonally. "7th Ranch open from May through October," according to visitor reports. For year-round options, Yellowstone River RV Park & Campground in Billings remains open throughout winter months.
Limited amenities: Many campgrounds offer basic services only. "Afterbay Campground features sites suitable for big rigs and offers toilets and trash service, though it lacks electric, sewer, and water hookups," according to campground information. Plan accordingly by bringing necessary supplies.
Weather considerations: Summer heat can be intense at exposed campsites. "High desert camping overlooking Bighorn Lake and the marina. I highly suggest you pay the extra couple bucks for a site with the covered picnic table to get some shade," advises Annie C.
Recreational options: Grandview Campground offers family-friendly activities. "They said they have an ice-cream social every night in their game building," reports MARY K., providing evening entertainment for children after a day of exploring.
Safety precautions: Educate children about wildlife awareness. "During my stay there was lots of bear activity, but the bears avoided human contact and were not a threat," shares Van S. about Afterbay Campground. Proper food storage is essential throughout the region.
Accessibility factors: Choose campgrounds based on your family's specific needs. "The bathrooms have flush toilets and were very clean. If you need a shower, head into Lovell and drop a donation in the box at the City Camping Park and use the super clean showers there," advises Annie C.
Leveling requirements: Most RV sites require some adjustment. At Love's RV Stop, "Level sites" are available according to Jennifer H., though many campgrounds in the area have gravel pads that may need leveling blocks.
Road conditions: Access roads vary significantly. "There is a short dirt road which is a bit bumpy," warns Richard G. about 7th Ranch RV Park. For larger rigs, consider Horseshoe Bend where "lengthy pull through sites and full hookups" are available.
Hookup availability: Electric service varies between campgrounds. "A lot of sites have water and electric in loops A and B" at Horseshoe Bend, while other campgrounds like Afterbay offer "electricity and water and vault toilets" but no sewer connections.
Frequently Asked Questions
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According to TheDyrt.com, the most popular RV campground near Fort Smith, MT is 7th Ranch RV Park with a 4.9-star rating from 40 reviews.
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