Available Oct 30 – Nov 1 · 2 nights5 sites open for every night
RV Parks in Decker, MT
3 RV parks and campgrounds in and around Decker, Montana. Check open sites for your dates.
Decker has 1 RV park, with 2 more within 25 miles. 1 list full hookups and 2 list sites of 40 ft or longer. You book through Montana State Parks, KOA and Campspot.
Available this weekend near Decker
Oct 30 – Nov 1 · open every night of the stay.
Available Oct 30 – Nov 1 · 2 nights5 sites open for every night
Available Oct 30 – Nov 1 · 2 nights3 sites open for every nightTongue River State Park
RV camping near Decker
RV parks in and near Decker
Parks in Decker first, then everything within 25 miles, nearest first (straight-line distance).
More filtersFilters
50 amp, pull-through and rig length come from each park's listing. With dates, Full hookups means an open full-hookup site for your stay; parks without availability data use their listing.
3 of 3 parks ·



Find it here. Book it with the park.
- Find open sitesSearch by place and dates; we check each provider's calendar for your whole stay.
- Check the fitHookups, amps, rig length and pull-through come from each park's own listing. When a listing doesn't say, we leave it blank.
- Book with the providerCampspot, Recreation.gov, ReserveAmerica, KOA and state park systems: you complete each reservation on their site.
A few good questions
How many RV parks are in Decker?
1 RV park in Decker, and 3 counting everything within 25 miles.
Which RV parks near Decker have full hookups?
1 of them list water, electric and sewer at the site; 1 list 50-amp service.
Can I bring a big rig to Decker?
2 parks within 25 miles list sites of 40 ft or longer (up to 74 ft), and 2 list pull-through sites.
All 3 RV parks in and near Decker
Most popular first.
- Tongue River State Park · Decker, MT · electric, up to 74 ft
- Sheridan / Big Horn Mountains KOA Journey · Sheridan, WY
- Lazy R Campground and Cabins · Ranchester, WY · full hookups, up to 60 ft
