and the National Park Service with help from the Civilian Conservation Corps. The new road was designed to be wide with shoulders. The new route was surveyed and graded in 1931 and 1932. The road foundation was built up during the following two years. In 1935, the initial paving was completed, and the old roadbed that was not covered by the new road was dug up and the landscape restored. Lane striping was added in 1938. Work on the road drainage, stone masonry guardrails, and observation points continued until 1941. Despite the difficult topography the entire project was completed for two million dollars, a significant engineering accomplishment. One of the main goals of the Rim Drive construction project was to blend the road into the natural environment. This was successfully accomplished. The road is built with gentle curves and there are no switchbacks despite the rugged terrain. Rustic stone guardrails were constructed along curves, at drainages, and at most of the Rim Drive viewpoints. While the observation points and turnouts provide views of the lake, the road itself cannot be seen from most of the observation points. Because of its unique history, engineering, stone masonry, associated hiking trails, and vistas of Crater Lake, Rim Drive was listed on the National Register of Historic Places on 30 January 2008. In addition, the American Automobile Association has named Rim Drive as one of the "ten most beautiful roads in the United States". Route Rim Drive is located high in the Cascade Mountains. At its lowest point, Rim Drive is above sea level. The road reaches almost at its highest point on top of Cloudcap. Rim Drive has eight main viewing areas with roadside parking. Four of these observation points (Pumice Point, Skell Head, Cloudcap, and Kerr Notch) are located just off the road. Short trails from parking areas lead to the other four observation points (Sinnott Memorial, Discovery Point, Watchman Lookout, and Merriam Point). In addition to the main viewing areas, there are 15 turnout vista points along the road. Heading northwest from the Crater Lake National Park headquarters in the Munson Valley Historic District, it is three miles (5 km) to Crater Lake rim and the Rim Village visitor area which is also a historic district. The Sinnott Memorial overlook is located in Rim Village. Leaving Rim Village, the speed limit is reduced to . Visitors reach the Discovery Point viewing