Stonewall Peak is a popular hike due to its relatively short and easy climb to some beautiful sweeping views of the Rancho Cuyamaca State Park & Lake Cuyamaca. This trail also starts at Paso Picacho Campground and is an easy to moderate 4 mile hike. Around ⅓ of the way you'll encounter a path straight ahead blocked by an “AREA CLOSED” sign. Stay to the right around the closed section and head straight to the peak looming above. As you continue on the trail you'll eventually find yourself at the base of pile of large granite boulders and slabs. Carefully made our way up the rocks on the east side of the rocky expanse until we found the metal pipe railing and stairway carved into the granite boulders. It's a short walk from there and it will be well worth the view once you're at the top.