Access Restrictions
Public entry is strictly prohibited; only authorized personnel with letters from the USAF and USFWS may visit.
U.S. Outlying Islands
Wildlife Refuge·Secluded, Protected, Historic
Johnston Atoll is a secluded territory of the United States located in the central Pacific Ocean, consisting of four islands surrounded by a coral reef. For much of the 20th century, the atoll was a significant military installation used for naval refueling, an airbase, and weapons testing. Following extensive environmental remediation completed in 2004, the site transitioned into a National Wildlife Refuge and part of the Pacific Remote Islands Marine National Monument. Today, it is a sanctuary for thriving communities of nesting seabirds and diverse marine life. Public entry is prohibited, with access granted only to authorized personnel for conservation and scientific purposes. The atoll remains a unique example of a former military site repurposed for ecological preservation.
Johnston Atoll is a secluded territory of the United States located in the central Pacific Ocean, consisting of four islands surrounded by a coral reef. For much of the 20th century, the atoll was a significant military installation used for naval refueling, an airbase, and weapons testing. Following extensive environmental remediation completed in 2004, the site transitioned into a National Wildlife Refuge and part of the Pacific Remote Islands Marine National Monument. Today, it is a sanctuary for thriving communities of nesting seabirds and diverse marine life. Public entry is prohibited, with access granted only to authorized personnel for conservation and scientific purposes. The atoll remains a unique example of a former military site repurposed for ecological preservation.
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Highlights
Thriving communities of nesting seabirds.
Significant marine biodiversity within protected reefs.
Former strategic U.S. military installation.
Designated National Wildlife Refuge and Marine National Monument.
Strictly controlled environment for ecological monitoring.
Before you go: Johnston Atoll essentials
Public entry is strictly prohibited for tourism or recreation.
The atoll is located in an extremely remote part of the Pacific Ocean.
Ongoing environmental monitoring continues following historical military use.
The surrounding waters are part of a protected Marine National Monument.
Environmental Protection
The area is a National Wildlife Refuge; strict protocols are in place to protect native seabirds and marine life.
Best For
Scientific research and wildlife conservation.
Currency
USD $
Languages Spoken
English
Historical Context
The site has a complex history as a former military testing and chemical disposal facility.
Best time to visit Johnston Atoll
Closed to the public
Spring
Access is restricted to authorized personnel; environmental monitoring of seabird colonies is ongoing.
Summer
Public entry remains prohibited; the atoll serves as a sanctuary for marine life and nesting birds.
Fall
No public visitation is allowed; the site is managed strictly for conservation and research.
Winter
The atoll is closed to tourists; authorized research teams perform periodic maintenance and monitoring.
Location
Johnston Atoll, U.S. Outlying Islands