search for Native American, American Indian, Southwest etc fabric. These are the terms I use and have found lots . These are the fabrics I love!
http://extraspecialfabric.com/southwes.htm
http://www.fabricparadise.com/cgi-bi...5&View=All&v=1
http://www.jandofabrics.com/products...4&viewall=True
Here are a few sites,scroll down, let me know if you need more sites, I have multiple sites saved.