The first incarnation of the Mississippi Valley Conference was founded in 1933 and contained five smaller high schools in western Wisconsin: Alma, Arcadia, Durand, Mondovi and Osseo[1]. Augusta joined from the Little Eight Conference in 1935[2], replacing Alma after their return to the Bi-County Conference. Whitehall followed in 1936[3] while maintaining dual membership in the Trempeleau Valley Conference (which they left in 1938). Black River Falls became the conference's seventh member school when it joined in 1938[4]. These seven schools competed together for two decades before three left to become charter members of the new Dairyland Conference in 1959: Augusta, Osseo and Whitehall[5]. Chippewa Falls and Cochrane-Fountain City took their place that same year[6]. Menomonie was also accepted into the conference for 1959 but withdrew before ever playing a game[7]. Three schools exited the conference in 1963: Black River Falls for the South Central Conference, Chippewa Falls for the Big Rivers Conference and Cochrane-Fountain City for the Dairyland Conference[8]. For the last two years of its existence, the Mississippi Valley Conference competed as a three-school circuit until Arcadia left for the Coulee Conference in 1965, thus ending the conference's run.[9]
In 2014, West Salem began competition in the Mississippi Valley Conference for football only. They remain in the Coulee Conference for all other sports. Due to competitive differences between Aquinas and the rest of the conference, their football team moved to the Coulee Conference with all other sports remaining in the MVC.[13]
Nineteen varsity sports count towards the Mississippi Valley Conference "All Sports Award". Points are awarded based on a team's finish in a given sport (seven for the conference championship, six for second place and so on to one point for the seventh-place finisher). At the completion of each sport season (fall, winter and spring), updated standings are posted on the league's Web site, and at the end of the school year, the school with the most points is declared the winner of the "All Sports Award."[14]
Central Vs. Logan - The two La Crosse public schools' intense rivalry is well publicized by local media and is highlighted by football's Battle for the Ark of Victory.
Central Vs. Aquinas - A heated battle for city supremacy and the overall city championship.
Logan Vs. Aquinas - A heated battle for city supremacy and the overall city championship.
Holmen Vs. Onalaska - Proximity spices up this rivalry, as the two school districts overlap city boundaries. Both schools also came over from the Coulee Conference together.
Tomah Vs. Sparta - Both came over from the South Central Conference and are separated by 17 miles of Interstate 90. The closest conference foe for both teams.
Reedsburg Vs. Baraboo - Both moved to the MVC as affiliated members and have one of the longest rivalries in the state.
In addition to these main rivalries, many other rivalries have developed based on different sports and success. In the early 2000s, Holmen and Aquinas had fierce competitions in Boys' Basketball in which tickets were sold out days after going on sale. Additionally, in the early 1990s, Onalaska Vs. Central was a heated matchup in Boys' Basketball. That rivalry was rekindled in the 2010s as both teams regularly competed for state bids. In wrestling, Holmen Vs. Sparta and Holmen Vs. Tomah have come and gone. In Boys' Ice Hockey, Onalaska and Aquinas/Holmen/G-E-T/C-FC hold a battle for the Omni Center rivalry, as both teams play in the same venue.
Many non-conference rivalries are also in the MVC. Onalaska Vs. West Salem, Logan and Central Vs. Eau Claire Memorial and North, Tomah Vs. Black River Falls, and Holmen Vs. G-E-T are all annual football games. Aquinas maintains matchups with old conference members from their WISAA days.
In many different sports, particularly but not limited to football, basketball, and wrestling, the three big rivalries will frequently be played on the same days, coining the phrase Rivalry Week in football and Rivalry Night in other sports. These rivalries are Central Vs. Logan, Holmen Vs. Onalaska, and Sparta Vs. Tomah. Occasionally, Aquinas will be inserted into a city match up or against Holmen or Onalaska on a Rivalry Night.