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Marquesas Exhibit: Geography

The Marquesas are high-rise volcanic islands, with jagged peaks reaching over 4,000 feet and razor-edge ridges above deep-cut valleys that descend along mountain streams to the sea. Like some of the other high-rise islands of Polynesia, most Marquesan islands drop straight into the sea, with no surrounding fringe reefs. Consequently, the number of good anchorages is limited, forcing materials to be offloaded onto lighters or even "swam ashore." Narrow black sand beaches usually form at the mouths of the streams.