Johnny Jack Ridge and Cooskie Ridge dominate this coastal stretch of Humboldt County, where the land drops precipitously into the Pacific Ocean. This 2018 survey reveals a landscape defined by sharp elevation changes and numerous drainage systems, including Cooskie Cr and Randall Cr. Named topographical landmarks like Sea Lion Gulch and Spanish Flat indicate a history of local maritime and terrestrial identification along this largely inaccessible shoreline. Offshore features such as Rodgers Break and Reynolds Rock serve as vital navigation points where the mountains meet the sea. The map illustrates the complex ridgelines of Lake Ridge and Spanish Ridge, providing a clear view of the natural barriers that have historically limited coastal development in this part of Northern California.
17 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1919 · Glynn
USGS Topo · 1:62,500
1920 · Pt. Delagda
USGS Topo · 1:62,500
1921 · Cape Mendocino
USGS Topo · 1:62,500
1926 · Gorda
USGS Topo · 1:62,500
1949 · Eureka
USGS Topo · 1:250,000
1949 · Point Delgada
USGS Topo · 1:62,500
1950 · Cape Mendocino
USGS Topo · 1:62,500
1950 · Scotia
USGS Topo · 1:62,500
1951 · Scotia
USGS Topo · 1:62,500
1951 · Point Delgada
USGS Topo · 1:62,500