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1928 Map of Mauna Loa

Name: 1928 Topographic Map of Mauna Loa
Creator: U.S. Geological Survey
Published: 1933
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1933

About this map

The summit of Mauna Loa dominates this 1920s topographic study, centered on the massive Mokuaweoweo Crater during the era of the Territory of Hawaii. The map records a landscape in constant transformation, specifically delineating the reach of the Lava Flow of 1851, the Alika Lava Flow of 1919, and the then-recent Lava Flow of 1926. These volcanic events are shown carving through traditional land divisions like Kapapala and Kahuku.

Beyond the volcanic activity, the survey identifies critical water sources in an arid high-altitude environment, such as Maunaoano Waterhole and several unnamed waterholes. Human engineering is visible in the lower elevations through the Noguchi Tunnels and Clark Tunnel within the Kau Forest Reserve. Notable landmarks for researchers include Umi Cavern, Sleeping Cave, and high-altitude features like Pohaku Hanalei and the Sulphur Cone.