evidence: The videos linked above claim that certain landforms (e.g., buttes and mesas) are remnants of giant ancient trees. However, as we will detail below, this is incorrect because it is inconsistent with over a century of evidence from geological research. Through this research, geologists determined that certain rock types are more resistant to weathering and erosion than others. When exposed to natural elements – such as wind, rain, and heat – certain rocks are more resistant to decomposition (i.e., weathering) and displacement (i.e., erosion). As a result, some rocks more quickly break down and are transported away by wind, water, and gravity, while others remain in place longer. This process is key to the shaping of many landforms – including plateaus, mesas, buttes, and pinnacles, shown in Figure 1 below.