- A walkthrough of the geology of the Odessa Craters and Channelled Scablands.
- Gulf of Guinea (Wikipedia)
The Gulf of Guinea is the northeasternmost part of the tropical Atlantic Ocean from Cape Lopez in Gabon, north and west to Cape Palmas in Liberia. Null Island, defined as the intersection of the Equator and Prime Meridian (zero degrees latitude and longitude), is in the gulf.