The Dogwood Trail, inside the campground of the same name, is just long enough and just steep enough to rate this a moderate (instead of easy) trail.
The trail itself is well maintained and winds through patches of pine and dogwood trees. It starts near campsite 69 and, depending on which route you take, ends up near the main highway (you can walk back to the campground on the road) or behind the restrooms near campsite 90 (this is the shorter route).
The campground is only open in the summer, and the November 1 date I was there was the last day of the season. The campground itself is perfect for a weekend getaway into the mountains. The restrooms are clean and functional, and the sites are spread out nicely with lots of trees providing privacy from the neighbors.
Directions: Take Highway 18 from San Bernardino up into the mountains past the Crestline turnoff of Highway 138. Continue on Highway 18 through the town of Rimforest and just after it, take a left on Daley Canyon Road, then an immediate right into Dogwood Campground. The trailhead is at the back of the campground.