FS-5500, commonly known as Siler Roberts, is a 13.5-mile forest service road situated in the Gifford Pinchot National Forest. This road provides access to Lone Tree Lake and Lone Tree Mountain, offering stunning vistas into the surrounding valleys and Mt. Adams in the East. As it ascends 2,000 feet through lush old-growth forests, be prepared for some shelf-road sections in certain spots. There are a few camping spots along the road, but there are many side spur-roads that will probably provide even better camping.