The mountain features a United States Forest Service fire lookout tower with an steel tower, which was built on the summit of Yamsay in 1929, but removed after the 1970s and only remnants of the foundation remain today.
The mountain features a United States Forest Service fire lookout tower with an steel tower. An steel tower was built on the summit of Yamsay in 1929. An steel tower was removed after the 1970s. Only remnants of the foundation remain today.