Chevron will also be a participating in the North Sea Claire Ridge project that was approved in the U.K. a few weeks ago.

FORBES: Chevron Looking Better, Stock Pumped For Run To $109

At this ridge, the sea floor spreads very slowly about 2cm (less than an inch) a year.

ECONOMIST: Geophysics

Most Florida mansions at the time were built back from the sea on a low limestone ridge that ran slightly inland from the shore along the coast south of downtown Miami.

WSJ: An American Renaissance Gem

Here's one example why we should care: in 1977, diving in the human occupied vehicle Alvin, scientists investigating a volcanic ridge 2500 m (1.5 miles) below sea-level found something totally unexpected -- lush ecosystems thriving at hydrothermal vents fueled by chemical energy released from the Earth's interior.

CNN: Probing the ocean's undiscovered depths

You hug the ridge of a huge inland cliff, looking out over a sea of moorland and trees towards the Scottish uplands.

BBC: Walking Hadrian��s Wall