Giza lies at the intersection of the world's lengthiest great circle (13642 km) and the world's lengthiest parallel over land (12734 km), a record set during the last ice age. Conveniently located near the Nile and a plentiful supply of limestone, the Great Pyramid has experienced little precipitation. In contrast, the Sphinx and its enclosure exhibits considerable erosion, much of it due to heavy rainfall. https://www.researchgate.net/figure/Giza-lies-at-the-intersection-of-the-worlds-lengthiest-great-circle-13642-km-and-the_fig2_306097887

Since this is a copy and can be available to anyone on the internet, its not been sent for publication. However, it adorns the Reporters Club Collection