Philatelic Aspects of Ascension

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Perfect Crater

Perfect Crater is the only crater on the island with a complete rim. It comes from the third phase of volcanic activity.

All of the other craters are "breached", that is to say their sides have been partly broken down by the lava. This was due to the south-east trade wind causing a build-up on the leeward side, so that later lava flows were forced to break out on the leeward side.

Copyright © 2000, Neil MacFall
Created by Stephen C Fowler
Last revised on the 16th of July 2000