2012 Map of Tyee City

About this map

Tyee City and the surrounding coastal marshlands define this section of the Humboldt County coastline where the Mad River meets the Pacific Ocean. The landscape is dominated by the complex hydrology of the Mad River Slough and Liscom Slough, which weave through the low-lying Arcata Bottoms. This area represents a critical intersection of riverine and maritime environments, with the topography showing the transition from the river's mouth to the sandy beach. Local infrastructure is sparse, characterized by rural routes such as Jackson Ranch Rd and Lanphere Rd, reflecting the agricultural and natural character of the bottoms. The 2012 survey by the U. S. Geological Survey provides a precise view of the shoreline and waterway configurations before recent shifts in coastal morphology.