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2022 Map of Cannibal Island

Name: 2022 Topographic Map of Cannibal Island
Creator: U.S. Geological Survey
Published: 2022
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2022

About this map

Cannibal Island and the surrounding marshlands of the Eel River delta define this coastal landscape on the edge of the Pacific Ocean. This intricate network of tidal waterways includes McNulty Slough, Sevenmile Slough, and Ropers Slough, reflecting a complex estuarine environment where land and water shift. The map documents the low-lying geography of Mosley Island and Cock Robin Island, which are connected to the mainland by rural routes like Cannibal Island Rd and Cock Robin Island Rd.

Transitioning from the river delta to the sea, the South Spit forms a narrow protective barrier for the southern reaches of Humboldt Bay. Access to this remote shoreline is marked by the South Spit to Eel River Trl and S Jetty Rd, providing a detailed look at the infrastructure supporting this environmentally sensitive area. Family-named roads such as John Helt Rd and Copenhagen Rd suggest the long-standing agricultural and residential patterns in this corner of Humboldt County.