Various roads and 40 miles of trails
cross the park, mostly in the lower elevation areas, as much of the higher land to the east is accessible only by off-trail hiking. In the far north, the busy Picture Rocks Road
links Tucson and I-10 with the scattered community of Avra, and passes through 3 miles of the park, while the dead straight Sandario Road
cuts through the western edge for 5 miles and continues north to Marana. The Saguaro National Park visitor center at Red Hills is located along the narrower Kinney Road
that crosses undulating land in the southwest corner, and also passes the short but very informative Desert Discovery Nature Trail
, which descriptions of the main types of cacti and information about the local wildlife. To the south, this road encounters equally abundant saguaro in the adjacent Tucson Mountain Park, and links with an alternative route from the city through Gates Pass.
Touring the Park
The one backcountry drive in the park starts along here - Hohokam Road
(formerly known as Bajada Loop), an unpaved track, part of which is one-way, that leads deep into the cactus forest and links with Golden Gate Road
, a connecting route to the Picture Rocks Road. There is one short footpath (the Valley View Overlook Trail
) that ends at an impressive viewpoint of rocky hills and saguaro-covered plains which extend far beyond the park boundary, across Avra Valley to the distant Waterman Mountains which are part of Ironwood Forest National Monument
. Longer hiking routes include the Hugh Norris Trail
- also starting along the scenic drive, this heads into the Tucson Mountains well away from paved roads and so allows for a more peaceful and undisturbed experience of the Sonoran Desert. In general, climbing in to the hills is the best way to appreciate the park, to observe the changes in environment and take advantage of the better views; otherwise, the scenery seen just by driving along the roads is little-changing.
Around 30 cactus species grow in the vicinity of the Tucson Mountains including various types of opuntia
. Apart from the saguaro, the most plentiful species are the cholla
, with seven different species found - teddy bear, buckhorn, staghorn, pencil, christmas, cane and chainfruit. Most cacti, including the saguaro, are in bloom from April to June, with late May the best time. Along Kinney Road a few miles south of the park, the excellent Arizona-Sonora Desert Museum
has a comprehensive collection of flora and fauna of the Southwest, including of course plenty of saguaros.