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The two-day bicycle Tour of the Scioto River Valley is better known by its acronym, TOSRV. It began as a father-and-son outing in 1962 before quickly growing into (at one time) the nation's largest bicycle touring weekend. It is non-competitive and is held annually on Mother's Day weekend. 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 Columbus Outdoor Pursuits (COP), an organization with a full range of non-competitive outdoor activities. The tour has become known as America's Bicycle Touring Classic.〔(【引用サイトリンク】 title=52nd Tour of the Scioto River Valley )〕 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. TOSRV is not for the casual cyclist. To enjoy TOSRV riders should have ridden at least 400 miles during the two months prior to the Tour including at least one 75-mile day. The riders, their bicycles, and equipment must be in top shape. In the 1970s and 1980s, there were around 6000 to 7000 riders who participated in TOSRV. ==History== The tour was started in 1962 by Charles and Greg Siple, a father and son, and grew from there to become one of the largest bicycling tours in America, having 2,672 riders in 2010. The most riders the tour ever hosted was in 1989 with 6,650 riders. A staggered start was necessary beginning in 1973 when the tour reached 2,500 cyclists. People come from all over the nation and Canada to ride TOSRV. Charlie Pace was named director of the tour in 1967 and retired after the 50th anniversary ride in 2011. The tour is now an important part of the culture in Portsmouth, which is known as the city of murals for the colorful depictions of its history on the flood walls. One of the murals is a depiction of the tour. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「TOSRV」の詳細全文を読む スポンサード リンク
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