Paved sites with full hookups spread across two loops make Three Island Crossing State Park Campground a reliable base camp along the Snake River. The campground accommodates RVs up to 110 feet and operates year-round with modern amenities including WiFi, showers, and a dump station.
Sites feature level paved pads with picnic tables and fire rings, though privacy between neighbors remains limited. Bob K. notes the layout as "long paved with water and electric on one side and the pick-nik table behind us." A large central grass area provides space for games and activities, while tree cover offers some shade but blocks stargazing opportunities according to tent campers.
The Oregon Trail history comes alive here, with a museum on-site and the actual river crossing location nearby. An 18-hole disc golf course draws enthusiasts, though reviewers warn the back nine holes have thick brush that swallows discs. A hiking trail connects directly to a neighboring winery within walking distance, adding dining options for adults. The Snake River flows adjacent to the campground, though the water is not suitable for swimming.
Train noise punctuates nights regularly, with multiple loud passes reported by campers. Seasonal gnat swarms can be intense during summer evenings, particularly in July. Sites fill quickly during peak season and weekends, making reservations essential. For additional camping options, see campgrounds just outside Glenns Ferry.
The combination of historical significance, full hookups, and proximity to town amenities works well for RV travelers and history buffs seeking a developed camping experience with educational opportunities.
RV Road Trip Guides
Location
Public CampgroundThree Island Crossing State Park Campground is located in Idaho
Directions
From I-84 take Glenns Ferry (exit 120 from Boise or exit 121 from Twin Falls), travel through town on 1st Ave, go S on Commercial St. to Madison Drive. 1 mile to State Park.
Address
1083 S Three Island Park Dr
Glenns Ferry, ID 83623
Coordinates
42.94426807 N
115.31800136 W
Connectivity
- T-Mobile5GExcellent CoverageVerified by 19 usersLast on 4/1/26
- Verizon5GExcellent CoverageVerified by 40 usersLast on 4/1/26
- AT&TLTEGood CoverageVerified by 12 usersLast on 4/1/26
Connectivity
- T-Mobile5GExcellent CoverageVerified by 19 usersLast on 4/1/26
- Verizon5GExcellent CoverageVerified by 40 usersLast on 4/1/26
- AT&TLTEGood CoverageVerified by 12 usersLast on 4/1/26
Access
- Drive-InPark next to your site
Site Types
- RV Sites
- Standard (Tent/RV)
- Group
- Tent Cabin
- Yurts
Features
For Campers
- ADA Access
- Trash
- Picnic Table
- Firewood Available
- Phone Service
- Reservable
- WiFi
- Showers
- Drinking Water
- Electric Hookups
- Toilets
- Alcohol
- Pets
- Fires
For Vehicles
- Sanitary Dump
- Sewer Hookups
- Water Hookups
- Pull-Through Sites
- 30 Amp Hookups
- Big Rig Friendly
Drive Time
- 50 min from Twin Falls, ID
- 53 min from Boise, ID
- 2 hrs 9 min from Pocatello, ID
- 2 hrs 43 min from Idaho Falls, ID














































