Biggest iceberg is on track to strike an island in the South Atlantic this month. The government of South Georgia and the South Sandwich islands say they are keeping an eye on the iceberg. Is it Is roughly 100 miles away from the island, the UK overseas territory and about the size of Rhode Island. NASA estimates the iceberg to be his biggest Delaware. BBC reports. Scientists are worried with the icebergs impact could be on wildlife in the region. Several animals like whales and seals feed off south Georgia's coasts.