Highlights on report findings include: (1) the majority of substance abuse treatment facilities operated by a Tribal government (73 percent) or the Indian Health Service (63 percent) were located in rural areas, while the majority of privately operated or State/local/community government-operated facilities that served the American Indian/Alaska Native (AI/AN) population were located in urban areas (62 percent); (2) substance abuse treatment facilities operated by a Tribal government were more likely to provide only outpatient services than facilities operated by the Indian Health Service or facilities serving the AI/AN populations that were operated by a private organization or a State/local/community government; and (3) 43 percent of AI/AN facilities offered treatment services in one or more AI/AN languages. Substance abuse disorders disproportionately affect minority populations, particularly the AI/AN population. Understanding the services available to the AI/AN population provides valuable information for funding and planning future AI/AN substance abuse treatment programs. Data on facilities offering substance abuse treatment services specifically for AI/AN natives are collected by the National Survey of Substance Abuse Treatment Services (N-SSATS). In 2007, a total of 13,648 facilities were included in N-SSATS. This report examines the characteristics of 335 identified facilities serving the AI/AN population in 2007. 6 tables, 1 figure, and 7 notes