Volcanic Crater on Faial
The Azores are volcanic islands, and in many places are still active. In the centre of the island of Faial is a crater, rising 800 metres from the sea, which is called Caldeira on the local maps, although a caldera is basically the name for a volcanic crater that has become filled with water. The false-colour in this colour infra-red image increases the off-world feel of any volcanic landscape. Although I have tweaked the colouration here to enhance the image, in general foliage tends towards magenta and red. The redder it is, the healthier it is.
Taken with Infrared Ektachrome film (E-4)