 It has been the most visited of the U.S. Pacific Marine Monuments as Continental Micronesia previously made stopovers at Johnston Atoll Airport.The island was annexed under the name Kalama by King Kamehameha IV of Hawai'i.The Johnston Atoll is a deserted, (with the exception of USFWS), atoll in the North Pacific Ocean located about southwest of the island of Hawai'i and is grouped as one of the United States Minor Outlying Islands.