Twin Bridges ParkThis is a free campground (as of 2008). It is situated on the south fork of the Snake River, so it is a fishing and boating area. There is a boat ramp. This fork of the river does go dry in the off season, and it is used during this time by off roaders or State: Idaho City: Rexburg Nearest Town: Ririe Status; Unknown Cost: Free Nearest Road: Gravel Scenery Rating: 2 Months Opened: Year Round Extras: Restrooms Number of Camp Sites: 11-29 Max Stay : Unknown -