An analysis was conducted to identify a set of significant predictors of cases of inappropriate deliveries to acute care facilities with no trauma-center designation of any level. Greater distance (mean = 19.96 miles) to the nearest trauma center and shorter distance traveled by the ambulance squad to the receiving facility (mean = 19.07 miles) corresponded to higher probabilities of mistriage, especially when a child was Native American (16 times more likely) and the transportation was conducted in the winter (9 times more likely).