The term 'Vail Trails' is a reference to the SKI trails located in Vail, Colorado. The two crossword solutions for this term are 'RUNS' (4 letters) and 'SKIRUNS' (7 letters). 'RUNS' refers to the trails that are used for skiing, while 'SKIRUNS' is a combination of the words 'SKI' and 'RUNS', referring to the same trails. Vail Trails is one of the most popular SKI resorts in the United States, offering a variety of trails for skiers of all levels.