Idaho State Parks · Idaho
Three Island Crossing State Park
Idaho State Parks · Idaho, United States
- Sites
- 82
- Hookups
- 82 electric, 82 with water
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Dump station
- Yes
- Pets
- Yes
- Elevation
- 2,543 ft
- Dark sky
- Bortle class 1
- Cell coverage
- T-Mobile good · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Lake
- Snake River
- Nearest town
- Glenns Ferry
- Address
- 1083 S Three Island Park Dr
- Phone
- 208-366-2394
- Activities
- Biking, Bird Watching, Disc Golf, Fishing, Hiking, Horseshoe Pits
About
Three Island Crossing State Park is an Idaho State Park with 82 campsites available for camping.
Fees
Idaho State Parks and Recreation's published statewide camping rate (tax inclusive): Basic sites $14-$24/night, Electric sites $26-$32/night, Full Hook-Up sites $28-$40/night, larger-capacity Companion sites $46-$80/night. Plus a $7/vehicle/day Motor Vehicle Entrance Fee ($14 for non-residents at Bear Lake, Farragut, Hells Gate, Priest Lake & Round Lake specifically; $7 for non-residents elsewhere) and a $10/reservation transaction fee.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 40° | 27° | -2° | 53° | 11 of 11 |
| February | 46° | 29° | 15° | 63° | 10 of 11 |
| March | 57° | 35° | 24° | 80° | 9 of 11 |
| April | 63° | 41° | 30° | 84° | 3 of 11 |
| May | 74° | 52° | 39° | 92° | 0 of 11 |
| June | 85° | 61° | 43° | 104° | 0 of 11 |
| July | 99° | 71° | 53° | 110° | 0 of 11 |
| August | 97° | 70° | 57° | 106° | 0 of 11 |
| September | 84° | 59° | 48° | 97° | 0 of 11 |
| October | 67° | 46° | 33° | 84° | 0 of 10 |
| November | 56° | 38° | 23° | 72° | 6 of 10 |
| December | 41° | 28° | 11° | 63° | 9 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Bruneau Dunes State Park · Idaho State Parks · 20 mi · 119 sites
- Thousand Springs State Park (Billingsley Creek) · Idaho State Parks · 23 mi · 50 sites
- Spillway Campground · USDA Forest Service · 29 mi
- Evans Creek Campground · USDA Forest Service · 32 mi
- Cove Recreation Site at CJ Strike Reservoir · Bureau of Land Management · 32 mi
All public campgrounds in Idaho · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.