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A large and finely engraved sea chart depicting the Pacific coastlines of Guatemala, El Salvador, Honduras, and Nicaragua, extending from the Ocos River in the west to San Juan del Sur in the east. This official U.S. Navy Hydrographic Office chart (No. 931) is based on foundational soundings by the U.S.S. Tuscarora and U.S.S. Ranger in the early 1880s, with small corrections noted through 1915.
The chart offers soundings in fathoms and shows extensive bathymetric and coastal details critical for navigation (reefs, shoals, anchorages, harbors, and safe approaches), alongside coastal settlements and inland topography, including mountain ranges and volcanoes rendered in finely shaded relief. Notably, major volcanoes such as Izalco, San Vicente, and Momotombo are labeled, with highland ranges in Guatemala and El Salvador detailed in stylized hachures. San Salvador and Guatemala City are shown.
This edition, updated just before World War I, marks an era when U.S. naval power and maritime charting expanded in tandem with growing commercial and strategic interests in the Pacific and the future Panama Canal zone.
![[Caribbean]](https://storage.googleapis.com/raremaps/img/small/85443.jpg)
