Published online by Cambridge University Press: 25 January 2017
Probably the study of petroglyphs and pictographs has been the most neglected field of archaeology. This disregard has prevailed despite the fact that both types of drawings exist in almost every state. Few attempts have been made to study the relations between different sites or between petroglyphs and other remains. Petroglyphs are regarded with little concern because little is known about them and detailed descriptions will not help to solve the problems confronting the investigator.