The 2015 Survey of the Base of the Great Pyramid *

In 2015, we completed a comprehensive survey of the base of the Great Pyramid. In this paper, we report on the survey's findings. We began our survey by remapping four control monuments around the base. Here we provide new coordinates for these control monuments. Next, we identified 84 points around the periphery of the Great Pyramid where we found evidence of its original baseline. Using this data set, we then derive new estimates for the size and orientation of the Great Pyramid and compute associated error bounds.