An annual event in a small unincorporated community in southern Johnson County begins tonight. The River Junction Tractor Show and Farmers Supper starts at 5pm at Joan Morgan’s home located next to Walker Park. Organizers expect there to be over 100 tractors on display. The meal begins at 6pm at the park, with a variety show to follow. Tomorrow, the River Junction Tractor Ride will take participants down to Washington County and through Kalona and Riverside. Proceeds from the ride will go to the Lone Tree Lion’s Club and Lone Tree Fire and Rescue.