The Petrified Forest is at 4100 Petrified Forest Rd. The park is a California State Historical Landmark preserve that harbors giant petrified redwoods. On the grounds are two half-mile trails that can be explored independently or on a guided tour. The trails pass excavated petrified trees, an ash fall and the site of the volcano that petrified the trees.
A new trail that opened in May 2016 leads to a grove of live redwoods. A museum also is on site.
Picnicking is permitted.
Hours: Daily 10-7, Memorial Day-Labor Day; 10-6, day after Labor Day-Oct. 31 and Apr. 1-day before Memorial Day; 10-5, rest of year. Docent-led tours are offered daily at 11, 1 and 3. Phone ahead to confirm schedule. Allow 30 minutes minimum.