Interstate 17 (
I-17) is an
Interstate Highway located entirely within the state of
Arizona, United States. I-17's southern terminus lies within
Phoenix, at
Interstate 10, and its northern terminus is in
Flagstaff, at
Interstate 40. The majority of I-17 is known as the
Arizona Veterans Highway. In the Phoenix metropolitan area, it is mostly known as the
Black Canyon Freeway, however the southern is part of the
Maricopa Freeway. The portion of the highway south of
Cordes Lakes was built along the alignment of
SR 69, while the northern part was built along old SR 79's alignment. I-17 is one of the most scenic Interstate Highways as it gains more than a mile in altitude between Phoenix at and Flagstaff at . The highway features several scenic view exits along its route that overlook the many mountains and valleys found in northern Arizona.