Open terrain and direct water access define the experience at Afterbay Campground, a National Park Service site within Bighorn Canyon National Recreation Area. The campground sits alongside Afterbay Lake, not inside the canyon itself, which means sightlines are wide and unobstructed rather than dramatic. Anglers and paddlers make up much of the visitor base here, with a fishing dock and a small boat ramp giving direct access to the water. No pets are allowed on site.
Amenities are straightforward. Electrical hookups accommodate RVs, and water spigots are distributed across the campground. Vault toilets are on-site, but there are no showers or sewer connections. Verizon users report workable cell reception, though data speeds are marginal. The road in has been flagged as rough, so drivers should factor that in. The nearest town has minimal resupply options, and as Russell B. notes, "a nearby fishing shop/market has bare minimum supplies," so arriving well-stocked is advisable.
Wildlife activity has been noted by visitors, including bears in the area during at least one stay. The animals kept their distance, but campers should store food accordingly. Nearby, Grapevine Campground and Garrison Stoker Resort provide alternative bases for those exploring the region, and campers planning a broader trip can browse camping near Fort Smith for additional options. Afterbay works best for self-sufficient campers who come primarily to fish or paddle.
Description
- Near Fort Smith, Montana - Open All Year - $35 per night for full utility sites - $18 per night for non-utility/tent camping sites - 22 RV and tent sites are located on the south shore of Afterbay lake - All sites have fire rings and picnic tables - Composting vault toilets - All sites are back in (not pull through) - All sites have electric and water - RV dump station available across the road near the Headquarters building
RV Road Trip Guides
Map & DirectionsAfterbay Campground is located in Montana near Fort Smith
Directions
Take 313 through the town of Fort Smith, MT and follow the brown and white sign to Afterbay Campground. It will be on the right side of 313 just past the NPS Headquarters building.
Address
P.O. Box 7458
Fort smith, MT 59035
Coordinates
45.315438 N
107.941659 W
Connectivity
- T-MobileNo Coverage
- VerizonNo CoverageVerified by 2 usersLast on 8/6/26
- AT&TNo Coverage
Connectivity
- T-MobileNo Coverage
- VerizonNo CoverageVerified by 2 usersLast on 8/6/26
- AT&TNo Coverage
Access
- Drive-InPark next to your site
Site Types
- RV Sites
- Standard (Tent/RV)
Features
For Campers
- Trash
- Phone Service
- Drinking Water
- Toilets
For Vehicles
- 30 Amp Hookups
- 50 Amp Hookups
- Big Rig Friendly
Drive Time
- 1 hr 58 min from Billings, MT
- 3 hrs 39 min from Bozeman, MT
- 3 hrs 58 min from Casper, WY
- 5 hrs 3 min from Helena, MT







