I want to know the answer to the following question:
What activities are popular in the mountains of Tucson?
All the background I'm provided with is that "Catalina Highway stretches 25 miles (40 km) and the entire mountain range is one of Tucson's most popular vacation spots for cycling, hiking, rock climbing, camping, birding, and wintertime snowboarding and skiing.". Is that enough to answer the question?
Answer: yes