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2015 Map of Captain Jacks Stronghold

Name: 2015 Topographic Map of Captain Jacks Stronghold
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Captain Jacks Stronghold and the nearby Gillems Graveyard mark a landscape of significant historical conflict within the Lava Beds National Monument. This volcanic terrain in Siskiyou County is defined by complex geological features, including the Schonchin Flow, Ross Flow, and distinctive formations like The Thumb of the Glove and Dragons Mouth. The map documents the overlap of federal lands, where the Modoc National Forest meets the monument boundary near Gillem Bluff.

Evidence of early ranching and habitation persists through labels like Fleener Place and the Devils Homestead, while the isolated Canby Cross stands as a commemorative landmark near the shoreline of Peninsula Bay. The rugged character of the area is further emphasized by numerous named chimney formations and ridges, such as Fleener Chimneys and Roemer Ridge, illustrating a region where the volcanic geology dictated both human settlement and the movement of historical figures.