This trail starts from the scenic loop drive and wanders north through gentle desert terrain past magnificent stands of saguaro cactus. The first portion of the trail, inside the scenic loop drive, is open to mountain bikers. Look for several examples of dead and fallen saguaros, which reveal their inner structure. Unlike trees, saguaros are supported by a ring of woody, individual ribs just under the outer skin of the plant.
The interior consists of a moist pulp, which is protected by the ribs. Unlike some desert plants, saguaros do not use deep groundwater to survive dry periods. Instead, these huge cacti have a shallow root system that collects water rapidly after rains. The entire plant expands as it stores water and gradually contracts as internal moisture is used.
Tucson, AZ - Hiking,Horseback Riding,Mountain Biking - Trail Length: 8.4