Western Coastal & Marine Geology
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| Ni‘ihau | Kaua'i | O‘ahu | Moloka‘i | Lāna‘i | Kaho‘olawe | Maui | Hawai‘i |
More than 5000 square miles (14,000 km2) of coral reef habitat is found in the Hawaiian Islands from beyond Midway to the Big Island of Hawai‘i. The USGS is currently concentrating its efforts on the the main eight Hawaiian Islands. Click on any of the islands above, or use the text links, to learn more about our coral reef studies on each island.