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1978 Map of Black Lassic

Name: 1978 Topographic Map of Black Lassic
Creator: U.S. Geological Survey
Published: 1978
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1978

About this map

The high ridges of the Six Rivers National Forest define this 1970s landscape, where the Humboldt Co and Trinity Co line follows the drainage divide between the Van Duzen River and eastern basins. This terrain is anchored by a trio of prominent peaks: Black Lassic, Mt Lassic, and Red Lassic. These summits loom over a network of seasonal water sources and trails, including Alder Spring and the Dry Lake area.

Evidence of human occupancy is sparse and high-altitude, notably at the Dutchman Camp (site) and the isolated Fingal Ranch to the south. The map preserves a moment when access to these peaks was limited to a few jeep trails and hiking paths, connecting landmarks like Mule Slide and Goat Rock. The complex hydrology of the region is visible through the numerous named creeks such as Shanty Creek and Blanket Creek that feed the North Fork and South Fork of the Van Duzen system.