truetrue This image is a derivative work of the following images: File:DTM_Pyramids.svg licensed with PD-self 2010-03-03T21:13:35Z NikNaks 1400x380 (14955
File:DTMPyramids.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Dtmpyramids.png → File:DTM Pyramids