Gunter Wagner's Yuchi Tales is an excellent collection of Yuchi oral tradition and folklore. This text is made far more useful in that it carries a Yuchi Language phonic of the stories as well as the English transliteration and translation, allowing one to begin to learn the Yuchi Language (not an endeavor for the faint-hearted linguist). This text is an excellent window into the Indigenous culture of the Southeast. This is arguably the most important piece of Yuchi ethnology available (and can be read or downloaded from the internet.).
Read/download it at: http://www.archive.org/details/rosettaproject_yuc_ortho-1