The term 'Capital Alpine' is composed of two crossword solutions, YODEL and Rhone. YODEL is a type of singing that originated in the Alps, a mountain range in Europe. It is characterized by its loud, high-pitched vocalizations. The Rhone is a major river in Europe that runs through Switzerland and France. It is one of the longest rivers in Europe and is an important source of hydroelectric power. Together, these two solutions form the term 'Capital Alpine, ' which refers to the capital cities of the countries located in the Alps, such as Switzerland, Austria, and Italy.