Recent satellite image of the waters (and icebergs) surrounding Ross Island. The yellow area just left of McMurdo Station shows where the sea ice edge is usually located during the summer. The red line displays the basic path the icebreaker and resupply vessels would take to get to McMurdo Station. However, the huge iceberg, B15A, is not only blocking the path of the vessels (not a big problem since ships can simply avoid it) but is causing the sea ice edge to remain a hundred miles or so further north. The northern tip of the Ross Ice Shelf can be seen as the white area in the lower right of the photo just off of Ross Island. This is where the large icebergs are born.