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2021 Map of Duncans Mills, 2021 Print
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2021 Map of Duncans Mills

USGS Topo · Published 2021

About this map

Russian River winding toward the Pacific coast defines this Sonoma County landscape, anchoring a string of riverside communities from Guernewood Park and Monte Rio down to the coastal bluffs. The map captures the meeting of river and sea at Jenner, where Penny Island sits in the estuary near Bridgehaven. The terrain is deeply incised by numerous gulches and canyons, such as Slaughterhouse Gulch and Sheephouse Cr, reflecting a history of timber and ranching activities indicated by the Bull Barn Ranch and Sawmill Gulch. Local heritage is preserved in sites like the Duncans Mills Cem and Saint Catherines Catholic Cem. Along the coast, the topography shifts to dramatic points and beaches, including Duncans Point and Portuguese Beach, connected by the coastal corridor. This survey documents the complex interface of coastal recreation, historic settlements, and the river-driven economy in the early 21st century.

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Map Details

Date Portrayed2021
Date Published2021
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions24 x 29 inches

Editions of this 2021 Duncans Mills Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain