Naranja Park--Oro Valley features 8 miles of hiking trails near Oro Valley, AZ.
Naranja Park is not a well-known park but it is still undeveloped and has some nice trails with a lot of variety. Head north on La Canada Blvd. to Naranja Road, turn east and go about 1 mile to find the entrance to the park. There are actually 5-6 different entry points if you are on a bike, but only one for a car. Look for the signs for the park. Many of the entry points have trail maps so you can orient from there.
http://www.tripleblaze.com/trail.php?c=3&i=2723