In 1990, Nicaragua registered approximately 135,000 mines buried within its national territory and another 133,435 mines in military stockpiles as a result of the internal conflict witnessed in Nicaragua during the 1980s. Although I will not touch on the details related to the operations, it is important to note that Nicaragua is the most heavily mined country in Central America and on the whole continent. As of June 2004, approximately 27,400 anti-personnel mines remain buried within Nicaraguan territory.
"The Landmine Victim Assistance Component Implemented by the OAS in Nicaragua,"
Journal of Conventional Weapons Destruction: Vol. 8
, Article 13.
Available at: http://commons.lib.jmu.edu/cisr-journal/vol8/iss2/13