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NWHI - Pearl and Hermes Atoll

Lying at longitude 175 degrees 50 minutes W and latitude 27 degrees 50 minutes N, Pearl and Hermes Atoll is found approximately 400 km SE of Midway. Pearl and Hermes Atoll is all that remains of a large shield volcano that, approximately 22 million years ago, may have been nearly as large as Lana'i. What remains now is a shallow water atoll about 32 km long and 20 kilometers wide covering an estimated 447 sq. km There are several permanent and numerous ephemeral islets around the periphery and inside the atoll. The largest island is Southeast Island, which is 0.1 sq. km.

Maps and Imagery


Download shapefiles which correspond to the detailed habitat class and aggregated cover imagery. Each zipped shapefile consists of 6 separate files, with the same root name and .dbf, .prj, .sbn, .sbx, .shp, and .shx extensions.

Assisted Files and Data