2018 Map of Petrolia
USGS Topo · Published 2018About this map
The Mattole River corridor defines this coastal landscape where the community of Petrolia serves as a primary inland hub. This region is characterized by steep ridges and winding canyon drainages, with Prosper Ridge and Shenanigan Ridge rising sharply away from the valley floor. Along the Pacific shoreline, the map reveals a rocky margin punctuated by distinctive landmarks such as Punta Gorda, Mussel Rock, and Sea Lion Rock. Local history is anchored at the Petrolia Cem and along a network of remote roads including Mattole Rd and Old Mattole Rd. The terrain transitions from the high elevations of Cooksie Mtn down to the sea level flats of Mattole Beach, illustrating the isolated, maritime-influenced geography of Humboldt County.
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Map Details
Editions of this 2018 Petrolia Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
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