1956 Map of Carlsborg

South of the irrigated flats and numerous flumes, the terrain rises sharply into the Olympic National Forest, dominated by the prominent peak of Lost Mountain and the secluded Texas Valley. The coastal fringe along the Strait of Juan de Fuca shows a network of family-named roads such as Vogt Road and Lotzgesell Rd, marking the established homesteads of Finn Hall and Agnew. Local infrastructure is further detailed by the Fish Hatchery and Gaging Sta along the river's path.