Although the dispute between Costa Rica and Nicaragua over the Isla Calero is still ongoing, Google has made corrections on Google Maps.
The error in the map, where the Isla Calero shows up on the Nicaraguan side, was used by Nicaraguan former guerilla commander Edén Pastora as an argument to assert that his army did not invade Costa Rica. In November, days after the discovery of Nicaraguan troops on a piece of swampland that Costa Rica claims its own, Pastora said to the media that one has to only look at the “Cleveland Accord” of July 24, 1900, that clearly shows the border between the two countries.
The Google map in November showed the border south of the Calero Island, prompting a dispute between the two countries. Costa Rica, after failed efforts at diplomacy and Nicaragua’s refusal to heed to orders by the Organization of American States (OAS), filed a lawsuit against Nicaragua with the International Court of Justice in The Hague, which handed down its interim decision on March 8, 2011, for Nicaragua to remove its troops and stop environmental damage of the area.
Source: Inside Costa Rica