The actual journal article is here (open access): https://www.cambridge.org/core/journals/antiquity/article/running-out-of-empty-space-environmental-lidar-and-t

The actual journal article is here (open access): https://www.cambridge.org/core/journals/antiquity/article/running-out-of-empty-space-environmental-lidar-and-the-crowded-ancient-landscape-of-campeche-mexico/FFDB435047017853F26CFC5D8804B08D https://www.cambridge.org/core/journals/antiquity/article/ru... Based on the images, I think that the largest structure is about here: 18.891548°N, -89.323622°E. But you can't see anything in google earth (otherwise why would he have had to traverse 16 pages of google search results).