An old geology monument was recently discovered and described to Madeira Island by geology researchers from Madeira University. In Paúl da Serra, many basalt parallelepiped rocks with an average dimension of about 3x1x1 meters are the evidence of the existence of a glacier once.

When global temperatures where lower, between 15 and 18 thousand years ago, these rocks where moved by the melting ice. This is the only explanation for such big rocks to be moved horizontally... This way we now know that Madeira Island had glaciers in its highest plateau Paúl da Serra. This site is now submitted to be declared Madeira's Geological Heritage.