Mine fields on territory of the former Yugoslavia

Source: Current Distribution of Potentially Live Known Landmine Fields Across the Balkans/former-Yugoslavia [situation as on circa 2005]



Unsurprisingly, these mine fields correlated strongly with former front lines:

Source: Mines on territory of former Yugoslavia compared to Yugoslav front lines in 1993

Source: Map of Land Mines in Bosnia in 2004

Source: Bosnia and Herzegovina Mine Action Centre



Further information:
MIS Portal – maps of mine suspected areas in Croatia (actual situation)
Wikipedia: Minefields in Croatia
Wikipedia: Land mine contamination in Bosnia and Herzegovina
New danger for refugees: leftover landmines in Croatia