Fig. 4: Topographic map showing slope steepness around Lake Comorán, Ecuador, and the source of the majority of fossil material described here. | Nature Communications

Fig. 4: Topographic map showing slope steepness around Lake Comorán, Ecuador, and the source of the majority of fossil material described here.

From: Ecological legacies and recent footprints of the Amazon’s Lost City

Fig. 4

The flattest area to the southwest of the lake was probably the most likely place for clearance and cultivation, whereas steep portions of the basin probably always retained forest. The base map was created entirely by the authors using QGIS version 3.34.6-Prizren71 for geospatial processing, visualization, and layout design. Slope and contours were derived from the ASTER Global Digital Elevation Model (GDEM)72 with a spatial resolution of 30 m, which was downloaded from the USGS Earth Explorer platform (https://earthexplorer.usgs.gov/).

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