The Warner Valley Ranger Station, also known as the Warner Valley Patrol Cabin and Quarters 304, is located in the southern portion of Lassen Volcanic National Park, on the access road to the Drakesbad Guest Ranch. Built in 1926, it is unusual in its choice of construction method. While it resembles a log cabin, it was built using stacked milled 2x6 lumber to form the walls. It is the only such building known to have been built in this manner in the western regions of the National Park Service system. The interlocking boards extend past each other at the corners, forming a decorative detail.