"Section P arbitrarily begins at the west side of an Interstate 5 onrampofframp, the next one north of the Castle Crags State Park exit. You enter by a locked gate, and immediately turn left (south) on an old road. North, it goes 80 yards to refreshing Root Creek. You follow this narrowing road, hiking under the pleasant shade of Douglas-firs, ponderosa pines, incense-cedars, black oaks and big-leaf maples. Although sheltered from the sun, your low-elevation route can get up into the 90s on hot summer afternoons. Characteristic of this environment is a profusion of poison oak, which in Section P grows up to about 3500 feet in elevation. From the start of this sectionfs PCT, you go about 1.3 mile south up a narrow, closed road to a fair viewpoint, then angle west for a 160-yard stroll to a junction (2420.0.5) with the Kettlebelly Trail."