Portlock Reefs

- Landsat 7
- Path 097, Row 067
- 15 October 1999
The Portlock Reefs are amongst the most northerly reefs of Coral Sea. They are part of a series of large, submerged, carbonate platform structures that run parallel to the Great Barrier Reef (50 km to the west) for a distance of around 100 km — the series includes Ashmore Reef in the south.
image: millenium coral reefs landsat archive/usf millenium global coral reef mapping project/nasa seawifs/nasa jsc

