This iconic Humboldt map may need crucial updates
Errors in an 1807 diagram cast doubt on studies of the Andes’ long-term ecological changes
![Tableau Physique](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/05/052319_CG_humboldt_feat-.jpg?fit=860%2C460&ssl=1)
MOUNTAIN MAPPER Alexander von Humboldt’s 1807 Tableau Physique pioneered a new kind of scientific visualization, combining vegetation and elevation data into one diagram. But later revisions have been overlooked by some modern researchers.
Zentralbibliothek Zürich/Wikimedia commons