Machu Picchu’s Unique Geology

Machu Picchu, the Inca citadel high on a ridge in the Andes Mountains, is one of the most impressive and widely recognized archaeological sites on Earth. Since I am fascinated by this spectacular place, I’ve written about it in several blog posts. In a new article I’ve focused on the geology – and this is posted on a website called "GondwanaTalks".

By |2020-09-23T19:37:28-07:00September 23rd, 2020|Ancient Andean Cultures|0 Comments

A US Geology and Art Tour

The US Geological Survey produces maps that are works of art, as well as highly informative cartography. Meticulously hand drawn by artists, many of these maps can be appreciated for their visual appeal, even if you don’t delve too deeply into the details of rock units, faults and folds. One of my all-time favorites is the "Geologic Map of the United States" published in 1974.

By |2020-04-30T06:57:16-07:00April 30th, 2020|Our Amazing Earth|4 Comments
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