Gravel Hill is a hiking, biking, and horse trail in Napa County, California. It is 0.3 miles long and begins at 1,647 feet altitude. Traveling the entire trail is 0.5 miles with a total elevation gain of 205 feet. The Martin Spring attraction can be seen along the trail. The trail ends near the Inspiration Point attraction and The Saddle.
Sign in/up to upload photos.