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Afterbay Campground

NPSNational Park Service — Fort Smith · Montana · Bighorn Canyon National Recreation Area

AgencyNPSNational Park Service
AreaBighorn Canyon National Recreation Area
LocationFort Smith · Montana · Bighorn Canyon National Recreation Area · 45.31544, -107.94155 · Map
SitesNot reported — the federal listing names no individual sites for this campground
Getting a siteFirst-come, first-served only — this campground takes no reservations.
HookupsNot reported in the federal data
Max RV lengthNot reported in the federal data
Months openNot in federal data — the federal listing does not publish a season for this campground. Check the official description below or Recreation.gov.
FeesNot reported — the federal listing carries no fee description for this campground.
AccessibilityNo
Phone(406) 666-2333

Check availability & book on Recreation.gov →

This site takes no reservations and shows no live availability. Source: Recreation.gov (RIDB export pulled November 5, 2026); this listing was last updated in the federal record on 2026-06-14.

From the official listing

- Near Fort Smith, Montana - Open All Year - 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

Directions, from the listing

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.

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Trip Card — Afterbay Campground

Fort Smith · Montana · Bighorn Canyon National Recreation Area

AgencyNPS · National Park Service
LocationFort Smith · Montana · Bighorn Canyon National Recreation Area
FeesNot reported in the federal data
Getting a siteFirst-come only
HookupsNot reported
Max RVNot reported
Months openNot in federal data
SitesNot reported

Book: recreation.gov/camping/campgrounds/247537 · Source: Recreation.gov, pulled November 5, 2026. Facility details come from federal recreation data and may be out of date — this site takes no reservations and shows no live availability; confirm details and book through Recreation.gov or the managing agency.