Jo Bonner Campground
Open for the 2026 season. Peak season runs from the first weekend of May through the second weekend of September. Reservations available via Recreation.gov.
Flash Flood Warning issued July 1 at 2:51PM MDT until July 1 at 5:45PM MDT by NWS Great Falls MT
FFWTFX The National Weather Service in Great Falls has issued a * Flash Flood Warning for... Northwestern Broadwater County in southwestern Montana... North Central Jefferson County in southwestern Montana... Southeastern Lewis and Clark County in west central Montana... * Until 545 PM MDT. * At 251 PM MDT, trained weather spotters reported thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 0.5 to 1.5 inches in 1 hour. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Trained spotters reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Helena, Townsend, East Helena, Winston, Goose Bay, Silos, York and Spring Meadow Lake State Park.
About
Jo Bonner Campground occupies a scenic spot at the northeastern end of Canyon Ferry Reservoir, roughly 30 miles east of Helena, Montana. Named for Josephine Agnes Martin Bonner by Governor John Bonner, this small Bureau of Reclamation campground provides 17 standard nonelectric campsites suitable for tents, trailers, and RVs up to 37 feet. Each site features a picnic table and fire ring on gravel pads. The campground includes two vault toilets, potable water, and trash service during the recreation season. A campground host is present. Just outside the campground, a gravel boat launch with courtesy dock offers direct access to Canyon Ferry's 33,500 surface acres for fishing, boating, kayaking, and water skiing. Canyon Ferry Reservoir lies between the Big Belt and Elkhorn mountain ranges, positioned roughly halfway between Yellowstone and Glacier National Parks. The reservoir supports year-round recreation including ice fishing and ice skating in winter months.
Directions
From Townsend, MT, head north on MT Highway 12/287. Turn right onto Spokane Creek Road and follow for 4.6 miles. Turn right onto County Road 430/Canyon Ferry Road and continue 7.9 miles. Turn right onto East Shore Drive and continue 0.3 miles to Jo Bonner Campground.
Amenities
| Water | Yes |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | — |
| Pets Allowed | Yes |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $10 |
Vehicle
| Max RV Length | 100ft |
| Max Trailer Length | 37ft |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| dagallagher@usbr.gov | |
| Phone | +1 (406) 475-3921 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | Yes |
Useful Links
| View on Recreation.gov | |
| USBR Canyon Ferry Reservoir |
Availability
Photos
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