WUE
"WUE (pronounced “woo-wee”) is the Western Undergraduate Exchange, and it is coordinated by WICHE. WUE is a regional tuition-reciprocity agreement that enables students from WICHE states to enroll in more than 150 participating two- and four-year public institutions at 150 percent of the enrolling institution’s resident tuition. WUE is the largest program of its kind in the nation, and has been in operation since 1987! WUE is not a short term exchange—it is meant to be used for a full degree."
Through the Western Undergraduate Exchange:
Reap steep nonresident tuition discounts — averaging $9,000 / year
Choose from hundreds of majors at 160 two- / four-year schools in 16 Western states/U.S. territories
Graduate with more options, less debt
"With WUE, out-of-state students pay no more than 150% of in-state tuition at participating schools, compared with nonresident rates that can exceed 300% of in-state rates."
"Eligible students must be from a WICHE member state."