TOSRV

The two-day bicycle Tour of the Scioto River Valley (TOSRV) began as a father-and-son outing in 1962 before quickly growing into the nation's largest bicycle touring weekend. It is non-competitive and has been traditionally held annually on Mother's Day weekend with the exception of its early years and 2017.

About 3000 cyclists participate in the annual Mother's Day weekend tour, covering 210 miles during the weekend (105 miles Saturday and 105 miles Sunday). The tour leaves from Columbus, Ohio on Saturday morning, the riders spend the night in Portsmouth on the Ohio River, and return on Sunday to Columbus.

TOSRV is organized by Outdoor Pursuits.

Since the TOSRV route runs along the Scioto River valley, it avoids the large hills of southern Ohio. The first 50 miles south of Columbus include some slight grades, and from mile 50 to mile 65 there are a series of short, steep hills. The remaining miles to Portsmouth are relatively flat for a total of 105 miles (169 kilometers) for the day. The Tour returns to Columbus along the same route.

A separate group has started the TOSRV RESURRECTION.