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1981 Map of Sulphur Cone

Name: 1981 Topographic Map of Sulphur Cone
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

Southwest Rift Zone geologic activity dominates this 1981 survey of the high slopes on the Island of Hawaii. The map illustrates the progression of volcanic events across the Kahuku and Keauhou 2 lands, tracing the paths of the Lava Flow of 1851, the Lava Flow of 1949, and the Lava Flow of 1950. These flows are segmented by an Indefinite Boundary Line marking the division between the North Kona District and Kau District.

Cultural and geological landmarks provide rare points of orientation in this ever-changing landscape. The Old Hawaiian Trail winds through the terrain, passing near the Sleeping Cave. Notable volcanic features including Sulphur Cone, Red Cone, and Puu O Uo stand as significant markers within the boundaries of Hawaii Volcanoes National Park, documenting the island's mid-20th-century volcanic history.