Sabino Canyon - Arizona

1930's, during the Great Depression, the Civilian Conservation Corporation built a road with 9 bridges up Sabino Canyon, just outside of Tucson Arizona. The road is 3.7 miles long and is only useable by foot, fee-based tram or bicycle after 5 pm. Sabino Creek has water flowing on the surface nearly year-round, some parts of the year the creek runs underground. Sabino Canyon is located in in the Santa Catalina Mountains, a part of the Sonoran Desert. The mountains began forming 12 million years ago. The Saguaro cactus began growing in the canyon about 8000 years ago. The trees began growing about 4000 years ago. The local Hohokam people lived in the canyon between 300 to 1400 AD.