Ralston Valley High School (RVHS or RV) is a public high school in Arvada, Colorado, United States. Since it opened for the 2000 school year, its enrollment has grown to around 1800+ students. Area rivalries include Standley Lake High School, Pomona High School and Arvada West High School. Ralston Valley is a comprehensive, four-year high school located in Arvada, a northwest suburb of Denver. Opened in 2000, Rit has established a solid reputation as one of Colorado's premiere public schools.