Elderberry is a hiking, biking, and horse trail in Alameda County and Contra Costa County, California. It is within Las Trampas Regional Wilderness. It is 2.2 miles long and begins at 1,072 feet altitude. Traveling the entire trail is a mile with a total elevation gain of 176 feet. Elderberry/Little Hills Ranch Parking and another parking and the Shady picnic site are near the trailhead. There are also an information board and an information map. The trail ends near the Corral Camp picnic site and the Corral Camp site.