WICHE is the Western Interstate Commission for Higher Education. It is a consortium of western schools. They do an undergraduate tuition exchange (WUE) where students from other WUE states pay 150% of instate rather than out of state tuition. It is mildly to moderately competitive, depending on the school, major and year, but awards can be better than that. They allow states without professional schools to send their students to other states at favorable tuition rates. As has been mentioned by several of us previously, you want to find the best western Vet Schools and then apply to the appropriate pre-vet major at those schools for undergrad. That will be your most cost effective way into great vet programs. I haven’t set foot on WSU, but Oregon State and Colorado State are beautiful and both in nice small college towns, but close enough to big cities.
EDIT: Oops! @DadTwoGirls beat me to it!