Tri-Valley Conference (Ohio)
The Tri-Valley Conference (TVC) is a 14-member high school athletic conference located in southeastern Ohio. The 14 Ohio high school conference members are affiliated with the Ohio High School Athletic Association (OHSAA). The conference is divided into two divisions based on school size. The Ohio Division features the larger schools and the Hocking Division features the smaller schools. History. The TVC was established in 1969, but football did not start as a league sport until the following year, 1970. The league has grown considerably with aggressive expansion throughout most of its history. The following  is a timeline of when schools were added to the league. All years listed refer to the fall of that year. Example: 1969 means the fall of 1969, or the 1969–1970 school year. 1969 - The four charter members: 1970: Nelsonville-York leaves the SEOAL to join the TVC as the fifth league member. This is also the first year football is a league sport. The TVC looked like this for the four-year period from 1970 to 1973: 1974: Alexander joins the TVC as the sixth league member. The TVC looked like this for the four-year period from 1974  to 1977: 1978: Trimble joins the TVC as the seventh league member. The TVC looked like this for the four-year period from 1978 to 1981: 1982: Wellston leaves the SEOAL and joins the TVC as the eighth league member. The TVC looked like this in 1982: 1983: Meigs leaves the SEOAL and joins the TVC and Miller also joins the TVC as the ninth and tenth members. The TVC looked like this for the three-year period from 1983 to 1985: 1986: Warren leaves the TVC to join the SEOAL, bringing league membership down to nine schools. The TVC  looked like this for the 7-year period from 1986 to 1992: 1993: The TVC is divided into two divisions, TVC OHIO and TVC HOCKING. Ohio and Hocking being the names of the rivers that run through the conference - the Ohio River and the Hocking River. The larger schools are placed in the TVC OHIO and the smaller schools are placed in the TVC HOCKING. Eastern and Southern are added as the tenth and eleventh league members. The TVC looked like this for the 4-year period from 1993 to 1996: TVC OHIO TVC HOCKING 1997: Waterford is added as  the twelfth league member. Waterford joins the TVC Hocking, bumping Alexander up to the TVC Ohio. The TVC experienced its longest streak of no league changes (11 years) and looked like this for the 11-year period from 1997 to 2007: TVC OHIO TVC HOCKING 2008: Athens leaves the SEOAL and joins the TVC Ohio as the thirteenth league member. The TVC looks like this for the two-year period from 2008 to 2009: TVC OHIO TVC HOCKING 2010: South Gallia and Wahama join the TVC Hocking as the fourteenth and fifteenth league members. Wahama becomes the first school located  in the State of West Virginia to join the previously all-Ohio conference. Belpre, due to declining enrollment, moves down to the TVC Hocking. The TVC looked like this for 4 years from 2010 to 2014: TVC OHIO TVC HOCKING 2014: River Valley leaves the OVC and joins the TVC as the 16th league member and becomes a part of the TVC OHIO. The TVC looked like this for 6 years from 2014 to 2019: TVC OHIO TVC HOCKING 2020: Miller leaves the TVC to join the MSL Cardinal, and Wahama leaves to join the LKC as the league goes  back down to 14 members. As of 2020, the TVC look like this: TVC OHIO TVC HOCKING