Southern Guam geospatial information server

Volcanic terrain

About this map:

This very simple geologic map of southern Guam indicates the distribution of volcanic terrain at the land surface. The map is based on the newest geologic map of Guam by Siegrist, H.G. and Reagan, M. (2008), who reinterpreted and revised the Geologic Map of Guam by Tracey et al. (1964).

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