How did howard carter know where to look to find Tutankhamen?

Howard Carter was guided by historical texts and previous archaeological findings that suggested the location of Tutankhamun's tomb in the Valley of the Kings. He had studied the work of earlier Egyptologists and noted the absence of significant discoveries in certain areas, particularly in a section that had not been thoroughly explored. Additionally, he had the support of Lord Carnarvon, who financed his excavation efforts, allowing Carter to focus on promising sites. His meticulous search ultimately led to the discovery of the tomb in 1922.