This is a three-mile section of the Yellowstone Trail, which from 1915 until the 1930s, was the northernmost of four early transcontinental highways in the country that included famed Route 66 and the Lincoln Highway. The Yellowstone Trail was also the route of the first Transcontinental Automobile Race in 1969. By 1917, the trail extended from coast to coast. The segment consists of cement slab construction measuring 18 feet wide and five inches thick, poured in slabs measuring 24 to 26 feet long. When built, the Grandview Road passed through a farming community and near the summer home of. well-known northwest photographer Asahel Curtis, who left an abundant photographic record of the area.