I have read most of your works and would like to say thanks for the enjoyment they have given to me. Thanks also for your website and your personal contributions to it. My reason for writing at this time is because of the 22nd June posting from Jeff from Indiana who wrote about a stone fort along the Ohio River. He said “If these stone structures were not built by Madoc and his colony than I would like to know who did?! The Indians did not build with stone.” In his excellent book “Frauds, Myths, and Mysteries: Science and Pseudoscience in Archaeology”, anthropologist Kenneth L. Feder briefly mentions excavations at one of the “better known forts in central Tennessee” said to have supported the Welsh hypothesis. He says there was no physical evidence to support that hypothesis and that “…the fort, which is really little more than a hilltop enclosed with a stone wall, contained artifacts made by American Indians, not Europeans”. Carbon dates “indicate that the stone fort was built and used sometime between A.D. 30 and 430”. Regards, Mike (South West Essex)