The Fourth Annual River Valley Four Race Challenge Series announces its final race, scheduled October 4. The Series consists of three 5K races and one 4.5K race in the River Valley area, from June to October. Each race in the 12th Annual Rotary River Valley Road Race/Walk series helps raise money for Rotary Scholarships and Black Mountain of Maine, and to promote healthy exercise. The final race is being held at: Black Mountain of Maine, 5.0K, October 4, 2008. For more information on the Race Challenge Series or on the upcoming October 4 or the Rotary Road Races, please call Paul Jones at 207-562-7172.