Another one from the set of lighthouses
St. George Reef Lighthouse
Perched on an exposed rock off the coast of northern California near Cresent City, St. George Reef Lighthouse took 10 years to build, From 1892 until its deactivation in 1975, the light from this concrete and granite tower warned vessels away from hazardous reef hidden beneath the surface.
and here is the nice matching 26c. stamp