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2018 Map of Black Lassic

Name: 2018 Topographic Map of Black Lassic
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Six Rivers National Forest anchors this high-elevation landscape along the border of Humboldt and Trinity counties. The terrain is defined by dramatic peaks and distinct geologic formations, most notably the dark prominence of Black Lassic and its companion, Red Lassic. These peaks overlook a complex network of drainage basins, where the headwaters of the Little Van Duzen River and the W Fork Van Duzen River carve through the mountains.

The presence of isolated water features like Dry Lake and Lost Lake suggests a rugged hydrology shaped by the area's steep verticality. Historical transit and land management patterns are visible through established routes such as Forest Rte 1507 and Lassie Lookout Rd, which connect remote landmarks like Signal Peak and Goat Rock. From the cattle-grazing associations of Buck Pasture to the remote logging or fire-watch context of Perry Salt Log, the map documents a territory primarily dedicated to conservation and resource management.