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RECOGNIZE: When you may have encountered a munition and that munitions are dangerous. Munitions can come in many shapes and sizes. They can be rusty or look like new. They can be out in the open, hidden in bushes, or partially buried.

RETREAT: Do not approach, touch, move, or disturb the item, carefully leave the area.

REPORT: Call 911 and advise the police of what you saw and where you saw it.

Area 101 Yigo, Guam


The United States captured Guam from Japan in August 1944 as a part of its Pacific campaign during World War II. By April 1945, the 64th and 771st Anti-Aircraft Artillery (AAA) Battalions occupied the area referred to as “Area 101”, with most of the site designated for use as the Army Garrison Forces (AGF) Bomb Disposal.  The 64th AAA Battalion remained on Guam through August 1945 and the 771st AAA Battalion remained through September 1946.

The Area 101 FUDS property is in the community of Lupog, in the Municipality of Yigo, Guam, and consists of approximately 842 acres, immediately south of Anderson Air Force Base. 


Today, DoD is responsible for the environmental restoration (cleanup) of properties that were formerly owned by, leased to or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense prior to October 1986. Such properties are known as Formerly Used Defense Sites or FUDS. The U.S. Army is DoD’s lead agent for the FUDS Program.

The U.S. Army Corps of Engineers (USACE) executes the FUDS Program on behalf of the U.S. Army and DoD. The U.S. Army and DoD are dedicated to protecting human health and the environment by investigating and, if required, cleaning up potential contamination including munitions that may remain on these properties from past DoD activities.

USACE began investigating Area 101 in August 2019 as a part of the FUDS program. Since then, USACE has conducted field investigations that include surface and subsurface removal of munitions and debris within areas that posed a risk to the public.


To perform the Remedial Investigation, the Corps must complete work in the field.  This field work will require the Corps to access property of landowner(s) within the Project Area.  The Corps must request a Right of Entry (ROE) from each landowner to access their property.  A ROE is a legal document that gives the Corps access for a specified amount of time to conduct specific activities as part of an investigation or remediation on privately owned property.  The Corps will request a ROE by calling and mailing letters to landowners. The Corps is currently seeking ROEs.


Meet the project team in-person at the Right of Entry Information Booth in September 2023 to have your questions addressed.


If you have questions regarding the Area 101 FUDS program, send an email to