Catalina Highway is a scenic roadway located in Arizona, USA, that leads to the summit of Mount Lemmon. The highway spans approximately 27 miles and offers stunning views of the surrounding landscape, including forests, mountains, and desert terrain. Constructed in the 1930s, Catalina Highway is a popular route for both tourists and locals. It provides access to various recreational areas, including hiking trails and picnic spots, making it a favored destination for outdoor enthusiasts. The highway is also known for its diverse ecosystems, ranging from desert flora to alpine vegetation.