Jo Bonner boat ramp is a gravel launch located at the northeastern end of Canyon Ferry Lake, 30 miles east of Helena, Montana, with a seasonal courtesy dock available during recreation season.

The ramp provides convenient access to a quiet bay and is situated directly adjacent to Jo Bonner Campground, making it ideal for both day-use boaters and campers.

The site supports diverse water activities including fishing, boating, kayaking, and canoeing year-round.