Oak Hill, California is a reported location of a commune run by Muslims of the Americas. The organization is headquartered at Islamberg in New York and is led by a radical cleric in Pakistan named Sheikh Mubarak Ali Gilani.
A 2004 report funded by the Justice Department identifies Oak Hill as having a “training compound” for MOA.
 Kane, John and April Wall. “Identifying the Links Between White-Collar Crime and Terrorism,” National White Collar Crime Center, September 2004. https://www.ncjrs.gov/pdffiles1/nij/grants/209520.pdf