From the bottom of the hill take this wide, twisting, dirt fire road uphill and after 1.5 miles, stay right at the first split, a sharp, uphill switchback, and keep climbing. In less than a mile, look for a split to the left, Miller Lateral. This will take you to Middle Switchbacks
in Marshall Canyon
. If you go right it will take you back to the low swinging gate and Cobal Canyon - La Verne.