Boysen State Park operates Cottonwood Camping Area as a tent-only facility along the shores of Boysen Reservoir. The campground allows campfires and welcomes pets, with cell service available for those needing connectivity. At $10 per night, reservations can be made in advance through the state park system.
The no-RV policy keeps this area focused on tent camping, while the lakeside location provides direct water access. Campers looking for RV-friendly alternatives might consider Trout Bay Compground — Boysen State Park, located about two miles east with full hookups.
Description
Cottonwood Bay Group Site
Reservation Info
All campsites are reservable only. Call the Call Center at 1-877-996-7275 to make a reservation.
Warning 2 Alerts are In Effect
There are 2 alerts for this campground. Camp safely!
Warning 2 Alerts are In Effect
There are 2 alerts for this campground. Camp safely!
HCB Toxin Advisories in effect on 8/18/2026 Toxin Advisory applies to the following locations: ___ Fremont Bay Campground, ___ Marina Campground, ___ Tamarask Campground, ___ Tough Creek Campground, ___ Wind River Below Dam, and ___ Wind River Upper Campground Visit http://bit.ly/WyoHCB2026%20 for more information.
Campsites are now walk-in only until May 15th. Arrive at the park, choose an available site, and pay all required fees at one of our self-pay stations. UWR Lodging Cabins are reservable year-round! Search 2 days out from today to view availability. Cabins can only be reserved up to 48 hours in advance during the off-season.
RV Road Trip Guides
Map & DirectionsCottonwood Camping Area is located in Wyoming near Shoshoni
Public CampgroundAddress
120 Boysen Drive
Shoshoni, WY 82649
Coordinates
43.34282778 N
108.2249 W
Connectivity
T-MobileLTESome Coverage- VerizonLTESome CoverageVerified by 2 usersLast on 10/11/26
- AT&TLTESome Coverage
Connectivity
- T-MobileLTESome Coverage
- VerizonLTESome CoverageVerified by 2 usersLast on 10/11/26
- AT&TLTESome Coverage
Access
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
Features
For Campers
- Phone Service
- Reservable
- Pets
- Fires
Drive Time
- 2 hrs 9 min from Casper, WY
- 4 hrs 15 min from Billings, MT
- 5 hrs from Idaho Falls, ID
- 5 hrs 31 min from Bozeman, MT
