Sierra Morena Trail is a hiking, biking, and horse trail in San Mateo County, California. It is within El Corte de Madera Creek Open Space Preserve. It is 1.7 miles long and begins at 2,202 feet altitude. Traveling the entire trail is a mile with a total elevation gain of 293 feet. The Methuselah tree is near the trailhead. There are also parkings, information boards, a bicycle repair station, bicycle parking, and restrooms. Along the trail there are a tree, a grassland, and a wood. The trail ends near Morena Sierra (elevation 2,398 feet).